An interventional study of Potassium Oxylate Mouthwash and Sodium Fluoride Dentifrice in Dental Health, sponsored by Johnson & Johnson Consumer and Personal Products Worldwide. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2015-07-03.
Sponsored by Johnson & Johnson Consumer and Personal Products Worldwide (formerly part of Johnson & Johnson) · Not applicable, Interventional, and Basic science
This study is 8 weeks long. People participating in this study will be asked to brush their teeth two times a day. Some people will get a mouthwash. People with a mouthwash will rinse two times a day after brushing their teeth. The mouth, teeth, tongue and gums will be looked at by a dentist. The dentist will look at the mouth to make sure the mouthwash does not irritate the mouth. The dentist will also look at the color of the teeth and amount of stain on the front teeth.
This is an 8-week, randomized, observer-blind, controlled, parallel group clinical study design to assess the oral tissue tolerance of a potassium oxalate containing mouthrinse. Subjects will have their oral soft/hard tissues assessed and will be evaluated for stain levels and tooth color shades at Screening/Baseline (Visit 1), Week 4 (Visit 2), Week 6 (Visit 3) and Week 8 (Visit 4). Subjects will be instructed to brush their teeth two times daily in their usual manner using the provided sodium fluoride toothpaste. Subjects assigned to the mouthrinse group will be instructed to rinse twice daily after brushing.
Johnson & Johnson Consumer and Personal Products Worldwide is the lead sponsor of 60 studies on the registry; none are open to participants now.
First submitted before Johnson & Johnson Consumer and Personal Products Worldwide left Johnson & Johnson.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
1.5% potassium oxalate sensitive mouthwash
Device: Potassium Oxylate Mouthwash
Sodium Fluoride Dentifrice
Drug: Sodium Fluoride Dentifrice
Rinse with 10 mL for 60 seconds, twice daily after brushing in usual manner with a sodium fluoride dentifrice
Also known as: Formula 11794-050
Brush in usual manner, twice daily, with a sodium fluoride dentifrice
Also known as: Regular Cavity Protection toothpaste
Change in Tooth Color as Represented by ΔE at 8 Weeks Post Baseline From the CIElab Assessment
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The changes in the individual L\*, a\*, and b\* color parameters were calculated to determine quantitatively the improvements in tooth lightness, redness, and yellowness, respectively. An overall change in tooth color was calculated using the CIE color equation ΔE = \[(ΔL\*)\^2 + (Δa\*)\^2 + (Δb\*)\^2\]\^1/2. The ΔE was calculated per tooth and then averaged over the teeth for a participant.
Time frame: 8 weeks
Oral Tissue Tolerance
Oral tissue tolerance was assessed by oral tissue adverse events for which the relationship to treatment was considered as possible, probable, or very likely. If the relationship to treatment was missing, the adverse event was categorized as a treatment-related adverse event.
Time frame: through 8 weeks
Change in Tooth Color as Represented by ΔE at 4 Weeks Post Baseline From the CIElab Assessment
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The changes in the individual L\*, a\*, and b\* color parameters were calculated to determine quantitatively the improvements in tooth lightness, redness, and yellowness, respectively. An overall change in tooth color was calculated using the CIE color equation ΔE = \[(ΔL\*)\^2 + (Δa\*)\^2 + (Δb\*)\^2\]\^1/2. The ΔE was calculated per tooth and then averaged over the teeth for a participant.
Time frame: 4 weeks
Change in Tooth Color as Represented by ΔE at 6 Weeks Post Baseline From the CIElab Assessment
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The changes in the individual L\*, a\*, and b\* color parameters were calculated to determine quantitatively the improvements in tooth lightness, redness, and yellowness, respectively. An overall change in tooth color was calculated using the CIE color equation ΔE = \[(ΔL\*)\^2 + (Δa\*)\^2 + (Δb\*)\^2\]\^1/2. The ΔE was calculated per tooth and then averaged over the teeth for a participant.
Time frame: 6 weeks
Change in Tooth Color as Represented by ΔL at 4 Weeks Post Baseline From the CIElab Assessment
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The change in the individual L\* color parameter was calculated. The ΔL was calculated per tooth and then averaged over the teeth for a participant.
Time frame: 4 weeks
Change in Tooth Color as Represented by ΔL at 6 Weeks Post Baseline From the CIElab Assessment
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The change in the individual L\* color parameter was calculated. The ΔL was calculated per tooth and then averaged over the teeth for a participant.
Time frame: 6 weeks
Change in Tooth Color as Represented by ΔL at 8 Weeks Post Baseline From the CIElab Assessment
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The change in the individual L\* color parameter was calculated. The ΔL was calculated per tooth and then averaged over the teeth for a participant.
Time frame: 8 weeks
Change in Tooth Color as Represented by Δb at 4 Weeks Post Baseline From the CIElab Assessment
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The change in the individual b\* color parameter was calculated. The Δb was calculated per tooth and then averaged over the teeth for a participant.
Time frame: 4 weeks
Change in Tooth Color as Represented by Δb at 6 Weeks Post Baseline From the CIElab Assessment
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The change in the individual b\* color parameter was calculated. The Δb was calculated per tooth and then averaged over the teeth for a participant.
Time frame: 6 weeks
Change in Tooth Color as Represented by Δb at 8 Weeks Post Baseline From the CIElab Assessment
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The change in the individual b\* color parameter was calculated. The Δb was calculated per tooth and then averaged over the teeth for a participant.
Time frame: 8 weeks
Mean Stain Score Over All Tooth Sites at 4 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 4 weeks
Mean Stain Score Over All Tooth Sites at 6 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 6 weeks
Mean Stain Score Over All Tooth Sites at 8 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 8 weeks
Mean Stain Intensity Over All Tooth Sites at 4 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 4 weeks
Mean Stain Intensity Over All Tooth Sites at 6 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 6 weeks
Mean Stain Intensity Over All Tooth Sites at 8 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 8 weeks
Mean Stain Area Over All Tooth Sites at 4 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
Time frame: 4 weeks
Mean Stain Area Over All Tooth Sites at 6 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
Time frame: 6 weeks
Mean Stain Area Over All Tooth Sites at 8 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
Time frame: 8 weeks
Mean Stain Score for Interproximal (Mesial and Distal) Sites at 4 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for mesial and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 4 weeks
Mean Stain Score for Interproximal (Mesial and Distal) Sites at 6 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for mesial and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 6 weeks
Mean Stain Score for Interproximal (Mesial and Distal) Sites at 8 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for mesial and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 8 weeks
Mean Stain Intensity For Interproximal (Mesial and Distal) Sites at 4 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The interproximal (mesial and distal) regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 4 weeks
Mean Stain Intensity For Interproximal (Mesial and Distal) Sites at 6 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The interproximal (mesial and distal) regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 6 weeks
Mean Stain Intensity For Interproximal (Mesial and Distal) Sites at 8 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The interproximal (mesial and distal) regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 8 weeks
Mean Stain Area for Interproximal (Mesial and Distal) Sites at 4 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The interproximal (mesial and distal) regions were scored for area according to the following criteria. Stain area for mesial and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area.
Time frame: 4 weeks
Mean Stain Area for Interproximal (Mesial and Distal) Sites at 6 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The interproximal (mesial and distal) regions were scored for area according to the following criteria. Stain area for mesial and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area.
Time frame: 6 weeks
Mean Stain Area for Interproximal (Mesial and Distal) Sites at 8 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The interproximal (mesial and distal) regions were scored for area according to the following criteria. Stain area for mesial and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area.
Time frame: 8 weeks
Mean Stain Score for Gingival Sites at 4 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for gingival regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 4 weeks
Mean Stain Score for Gingival Sites at 6 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for gingival regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 6 weeks
Mean Stain Score for Gingival Sites at 8 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for gingival regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 8 weeks
Mean Stain Intensity for Gingival Sites at 4 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The gingival regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The gingival regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 4 weeks
Mean Stain Intensity for Gingival Sites at 6 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The gingival regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The gingival regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 6 weeks
Mean Stain Intensity for Gingival Sites at 8 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The gingival regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The gingival regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 8 weeks
Mean Stain Area for Gingival Sites at 4 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The gingival regions were scored for area according to the following criteria. Stain area for gingival regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area.
Time frame: 4 weeks
Mean Stain Area for Gingival Sites at 6 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The gingival regions were scored for area according to the following criteria. Stain area for gingival regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area.
Time frame: 6 weeks
Mean Stain Area for Gingival Sites at 8 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The gingival regions were scored for area according to the following criteria. Stain area for gingival regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area.
Time frame: 8 weeks
Mean Stain Score for Body Sites at 4 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for the body of the tooth was scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 4 weeks
Mean Stain Score for Body Sites at 6 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for the body of the tooth was scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 6 weeks
Mean Stain Score for Body Sites at 8 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for the body of the tooth was scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 8 weeks
Mean Stain Intensity for Body Sites at 4 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The body regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The body regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 4 weeks
Mean Stain Intensity for Body Sites at 6 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The body regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The body regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 6 weeks
Mean Stain Intensity for Body Sites at 8 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The body regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The body regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 8 weeks
Mean Stain Area for Body Sites at 4 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The body regions were scored for area according to the following criteria. Stain area for the body of the tooth was scored as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
Time frame: 4 weeks
Mean Stain Area for Body Sites at 6 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The body regions were scored for area according to the following criteria. Stain area for the body of the tooth was scored as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
Time frame: 6 weeks
Mean Stain Area for Body Sites at 8 Weeks
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The body regions were scored for area according to the following criteria. Stain area for the body of the tooth was scored as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
Time frame: 8 weeks
Mean Stain Score for Facial Sites at 4 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 4 weeks
Mean Stain Score for Facial Sites at 6 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 6 weeks
Mean Stain Score for Facial Sites at 8 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 8 weeks
Mean Stain Intensity for Facial Sites at 4 Weeks
The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 4 weeks
Mean Stain Intensity for Facial Sites at 6 Weeks
The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 6 weeks
Mean Stain Intensity for Facial Sites at 8 Weeks
The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 8 weeks
Mean Stain Area for Facial Sites at 4 Weeks
The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
Time frame: 4 weeks
Mean Stain Area for Facial Sites at 6 Weeks
The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
Time frame: 6 weeks
Mean Stain Area for Facial Sites at 8 Weeks
The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
Time frame: 8 weeks
Mean Stain Score for Lingual Sites at 4 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 4 weeks
Mean Stain Score for Lingual Sites at 6 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 6 weeks
Mean Stain Score for Lingual Sites at 8 Weeks
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
Time frame: 8 weeks
Mean Stain Intensity for Lingual Sites at 4 Weeks
The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 4 weeks
Mean Stain Intensity for Lingual Sites at 6 Weeks
The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 6 weeks
Mean Stain Intensity for Lingual Sites at 8 Weeks
The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
Time frame: 8 weeks
Mean Stain Area for Lingual Sites at 4 Weeks
The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
Time frame: 4 weeks
Mean Stain Area for Lingual Sites at 6 Weeks
The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
Time frame: 6 weeks
Mean Stain Area for Lingual Sites at 8 Weeks
The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
Time frame: 8 weeks
| Milestone | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Started | 48 | 48 |
| Completed | 46 | 41 |
| Not completed | 2 | 7 |
| Withdrew: Adverse event | 1 | 1 |
| Withdrew: Withdrawal by subject | 1 | 3 |
| Withdrew: Noncompliant with study product | 0 | 3 |
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The changes in the individual L\*, a\*, and b\* color parameters were calculated to determine quantitatively the improvements in tooth lightness, redness, and yellowness, respectively. An overall change in tooth color was calculated using the CIE color equation ΔE = \[(ΔL\*)\^2 + (Δa\*)\^2 + (Δb\*)\^2\]\^1/2. The ΔE was calculated per tooth and then averaged over the teeth for a participant.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Change in Tooth Color as Represented by ΔE at 8 Weeks Post Baseline From the CIElab Assessment | 0.909 ± 0.0612 | 1.035 ± 0.0650 |
Oral tissue tolerance was assessed by oral tissue adverse events for which the relationship to treatment was considered as possible, probable, or very likely. If the relationship to treatment was missing, the adverse event was categorized as a treatment-related adverse event.
| percentage of participants | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Participants with ≥ one treatment-related AE | 2.1 | 0.0 |
| Sensitivity of teeth | 2.1 | 0.0 |
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The changes in the individual L\*, a\*, and b\* color parameters were calculated to determine quantitatively the improvements in tooth lightness, redness, and yellowness, respectively. An overall change in tooth color was calculated using the CIE color equation ΔE = \[(ΔL\*)\^2 + (Δa\*)\^2 + (Δb\*)\^2\]\^1/2. The ΔE was calculated per tooth and then averaged over the teeth for a participant.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Change in Tooth Color as Represented by ΔE at 4 Weeks Post Baseline From the CIElab Assessment | 0.875 ± 0.0464 | 0.882 ± 0.0475 |
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The changes in the individual L\*, a\*, and b\* color parameters were calculated to determine quantitatively the improvements in tooth lightness, redness, and yellowness, respectively. An overall change in tooth color was calculated using the CIE color equation ΔE = \[(ΔL\*)\^2 + (Δa\*)\^2 + (Δb\*)\^2\]\^1/2. The ΔE was calculated per tooth and then averaged over the teeth for a participant.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Change in Tooth Color as Represented by ΔE at 6 Weeks Post Baseline From the CIElab Assessment | 0.805 ± 0.0496 | 1.040 ± 0.0507 |
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The change in the individual L\* color parameter was calculated. The ΔL was calculated per tooth and then averaged over the teeth for a participant.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Change in Tooth Color as Represented by ΔL at 4 Weeks Post Baseline From the CIElab Assessment | 0.013 ± 0.0857 | 0.054 ± 0.0876 |
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The change in the individual L\* color parameter was calculated. The ΔL was calculated per tooth and then averaged over the teeth for a participant.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Change in Tooth Color as Represented by ΔL at 6 Weeks Post Baseline From the CIElab Assessment | 0.071 ± 0.0959 | -0.090 ± 0.0981 |
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The change in the individual L\* color parameter was calculated. The ΔL was calculated per tooth and then averaged over the teeth for a participant.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Change in Tooth Color as Represented by ΔL at 8 Weeks Post Baseline From the CIElab Assessment | 0.158 ± 0.0949 | -0.043 ± 0.1006 |
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The change in the individual b\* color parameter was calculated. The Δb was calculated per tooth and then averaged over the teeth for a participant.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Change in Tooth Color as Represented by Δb at 4 Weeks Post Baseline From the CIElab Assessment | 0.077 ± 0.0518 | -0.117 ± 0.0529 |
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The change in the individual b\* color parameter was calculated. The Δb was calculated per tooth and then averaged over the teeth for a participant.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Change in Tooth Color as Represented by Δb at 6 Weeks Post Baseline From the CIElab Assessment | 0.123 ± 0.0487 | -0.212 ± 0.0498 |
The tooth color of the four maxillary incisor teeth (teeth #7-10, facial surface) was measured instrumentally using the MHT SpectroShade System. Assessments were made under standardized lighting conditions after participants brushed their teeth with water. The aperture tip was placed perpendicularly to the facial surface of the tooth and the color measured using the CIElab color system. The change in the individual b\* color parameter was calculated. The Δb was calculated per tooth and then averaged over the teeth for a participant.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Change in Tooth Color as Represented by Δb at 8 Weeks Post Baseline From the CIElab Assessment | 0.107 ± 0.0639 | -0.107 ± 0.0677 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score Over All Tooth Sites at 4 Weeks | 0.329 ± 0.0464 | 0.386 ± 0.0505 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score Over All Tooth Sites at 6 Weeks | 0.349 ± 0.0565 | 0.621 ± 0.0605 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score Over All Tooth Sites at 8 Weeks | 0.394 ± 0.0703 | 0.791 ± 0.0785 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity Over All Tooth Sites at 4 Weeks | 0.154 ± 0.0224 | 0.184 ± 0.0243 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity Over All Tooth Sites at 6 Weeks | 0.164 ± 0.0274 | 0.302 ± 0.0293 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity Over All Tooth Sites at 8 Weeks | 0.181 ± 0.0334 | 0.375 ± 0.0372 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area Over All Tooth Sites at 4 Weeks | 0.162 ± 0.0225 | 0.196 ± 0.0245 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area Over All Tooth Sites at 6 Weeks | 0.166 ± 0.0270 | 0.303 ± 0.0290 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area Over All Tooth Sites at 8 Weeks | 0.188 ± 0.0340 | 0.383 ± 0.0379 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for mesial and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Interproximal (Mesial and Distal) Sites at 4 Weeks | 0.408 ± 0.0590 | 0.463 ± 0.0643 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for mesial and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Interproximal (Mesial and Distal) Sites at 6 Weeks | 0.427 ± 0.0712 | 0.776 ± 0.0762 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for mesial and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Interproximal (Mesial and Distal) Sites at 8 Weeks | 0.451 ± 0.0889 | 0.994 ± 0.0991 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The interproximal (mesial and distal) regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity For Interproximal (Mesial and Distal) Sites at 4 Weeks | 0.192 ± 0.0284 | 0.224 ± 0.0309 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The interproximal (mesial and distal) regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity For Interproximal (Mesial and Distal) Sites at 6 Weeks | 0.205 ± 0.0350 | 0.379 ± 0.0374 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The interproximal (mesial and distal) regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity For Interproximal (Mesial and Distal) Sites at 8 Weeks | 0.210 ± 0.0422 | 0.475 ± 0.0470 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The interproximal (mesial and distal) regions were scored for area according to the following criteria. Stain area for mesial and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Interproximal (Mesial and Distal) Sites at 4 Weeks | 0.202 ± 0.0284 | 0.236 ± 0.0309 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The interproximal (mesial and distal) regions were scored for area according to the following criteria. Stain area for mesial and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Interproximal (Mesial and Distal) Sites at 6 Weeks | 0.206 ± 0.0348 | 0.383 ± 0.0373 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The interproximal (mesial and distal) regions were scored for area according to the following criteria. Stain area for mesial and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Interproximal (Mesial and Distal) Sites at 8 Weeks | 0.218 ± 0.0433 | 0.483 ± 0.0483 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for gingival regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Gingival Sites at 4 Weeks | 0.383 ± 0.0596 | 0.521 ± 0.0652 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for gingival regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Gingival Sites at 6 Weeks | 0.395 ± 0.0732 | 0.732 ± 0.0786 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for gingival regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Gingival Sites at 8 Weeks | 0.526 ± 0.0914 | 0.920 ± 0.1023 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The gingival regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The gingival regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity for Gingival Sites at 4 Weeks | 0.180 ± 0.0292 | 0.252 ± 0.0318 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The gingival regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The gingival regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity for Gingival Sites at 6 Weeks | 0.180 ± 0.0350 | 0.358 ± 0.0375 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The gingival regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The gingival regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity for Gingival Sites at 8 Weeks | 0.241 ± 0.0434 | 0.438 ± 0.0485 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The gingival regions were scored for area according to the following criteria. Stain area for gingival regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Gingival Sites at 4 Weeks | 0.186 ± 0.0292 | 0.263 ± 0.0319 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The gingival regions were scored for area according to the following criteria. Stain area for gingival regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Gingival Sites at 6 Weeks | 0.184 ± 0.0335 | 0.352 ± 0.0359 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The gingival regions were scored for area according to the following criteria. Stain area for gingival regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Gingival Sites at 8 Weeks | 0.250 ± 0.0430 | 0.444 ± 0.0481 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for the body of the tooth was scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Body Sites at 4 Weeks | 0.132 ± 0.0258 | 0.112 ± 0.0281 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for the body of the tooth was scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Body Sites at 6 Weeks | 0.160 ± 0.0337 | 0.215 ± 0.0361 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). Stain area for the body of the tooth was scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Body Sites at 8 Weeks | 0.143 ± 0.0371 | 0.258 ± 0.0412 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The body regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The body regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity for Body Sites at 4 Weeks | 0.058 ± 0.0121 | 0.045 ± 0.0132 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The body regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The body regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity for Body Sites at 6 Weeks | 0.075 ± 0.0160 | 0.100 ± 0.0171 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The body regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. The body regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity for Body Sites at 8 Weeks | 0.063 ± 0.0166 | 0.112 ± 0.0184 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The body regions were scored for area according to the following criteria. Stain area for the body of the tooth was scored as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Body Sites at 4 Weeks | 0.064 ± 0.0133 | 0.056 ± 0.0145 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The body regions were scored for area according to the following criteria. Stain area for the body of the tooth was scored as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Body Sites at 6 Weeks | 0.076 ± 0.0158 | 0.100 ± 0.0169 |
The facial and lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). The body regions were scored for area according to the following criteria. Stain area for the body of the tooth was scored as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Body Sites at 8 Weeks | 0.067 ± 0.0180 | 0.124 ± 0.0200 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Facial Sites at 4 Weeks | 0.063 ± 0.0314 | 0.058 ± 0.0342 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Facial Sites at 6 Weeks | 0.118 ± 0.0399 | 0.140 ± 0.0427 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Facial Sites at 8 Weeks | 0.097 ± 0.0576 | 0.319 ± 0.0642 |
The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity for Facial Sites at 4 Weeks | 0.027 ± 0.0153 | 0.025 ± 0.0167 |
The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity for Facial Sites at 6 Weeks | 0.054 ± 0.0192 | 0.065 ± 0.0206 |
The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity for Facial Sites at 8 Weeks | 0.042 ± 0.0257 | 0.144 ± 0.0286 |
The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Facial Sites at 4 Weeks | 0.032 ± 0.0147 | 0.033 ± 0.0160 |
The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Facial Sites at 6 Weeks | 0.059 ± 0.0188 | 0.075 ± 0.0201 |
The facial surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Facial Sites at 8 Weeks | 0.047 ± 0.0281 | 0.160 ± 0.0313 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Lingual Sites at 4 Weeks | 0.596 ± 0.0831 | 0.716 ± 0.0910 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Lingual Sites at 6 Weeks | 0.586 ± 0.0949 | 1.106 ± 0.1020 |
The mean stain score (0-9) per participant was determined by multiplying the individual area and intensity scores from each region and summing them then dividing by the number of sites scored. The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area and intensity according to the following criteria. Stain area for mesial, gingival, and distal regions were scored on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain covers entire area) and for the body of tooth on a 4-point ordinal scale (0=no stain present, natural tooth color; 3=stain outside pits/grooves, over 10% of surface affected). The intensity of yellow-brown stains occurring in each region was assessed on a 4-point ordinal scale (0=no stain; 3=heavy, dark stain).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Score for Lingual Sites at 8 Weeks | 0.677 ± 0.1146 | 1.244 ± 0.1283 |
The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity for Lingual Sites at 4 Weeks | 0.282 ± 0.0406 | 0.344 ± 0.0444 |
The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity for Lingual Sites at 6 Weeks | 0.279 ± 0.0467 | 0.541 ± 0.0501 |
The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for intensity according to the following criteria. The intensity of yellow-brown stains occurring in each region is unrelated to the area covered with stained pellicle. All four regions were assessed on a 4-point ordinal scale as 0=no stain, 1=faint stain (can be seen with close examination), 2=moderate stain (clearly visible and aesthetically unacceptable), 3=heavy, dark stain (obvious and aesthetically unacceptable).
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Intensity for Lingual Sites at 8 Weeks | 0.314 ± 0.0549 | 0.596 ± 0.0614 |
The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Lingual Sites at 4 Weeks | 0.293 ± 0.0409 | 0.359 ± 0.0448 |
The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Lingual Sites at 6 Weeks | 0.277 ± 0.0460 | 0.533 ± 0.0495 |
The lingual surfaces of the maxillary and mandibular anterior teeth (teeth #6-11 and #22-27) were scored using the Macpherson Modification of the Lobene Stain Index. Each surface was divided into 4 regions (gingival, mesial, distal, and body). All four regions were scored for area according to the following criteria. Stain area for mesial, gingival, and distal regions were scored as 0=no stain present, natural tooth color; 1=thin line of stain, may be discontinuous; 2=thick line or band of stain; 3=stain covers entire area and for the body of tooth as 0=no stain present, natural tooth color, 1=stain limited to pits and grooves; 2=stain outside pits/grooves, up to 10% of surface affected; 3=stain outside pits/grooves, over 10% of surface affected.
| units on a scale | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| Mean Stain Area for Lingual Sites at 8 Weeks | 0.325 ± 0.0560 | 0.598 ± 0.0628 |
Collected over Week 8, +30 days for serious adverse events.. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Crest® Regular Toothpaste | — | 0/48 (0%) | 3/48 (6.3%) |
| 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) | — | 0/48 (0%) | 2/48 (4.2%) |
| Event | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) |
|---|---|---|
| NasopharyngitisInfections and infestations | 3/48 | 2/48 |
| Age, Continuous(years) | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) | Total |
|---|---|---|---|
| Mean | 47.6 ± 9.96 | 49.8 ± 8.08 | 48.7 ± 9.08 |
| Sex: Female, Male(Participants) | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) | Total |
|---|---|---|---|
| Female | 40 | 40 | 80 |
| Male | 8 | 8 | 16 |
| Region of Enrollment(participants) | Crest® Regular Toothpaste | 11794-050 (1.5% Potassium Oxalate & pH 4.2 Mouth Rinse) | Total |
|---|---|---|---|
| USA | 48 | 48 | 96 |
The record gives a start of Oct 2009, a primary completion of Dec 2009 and a completion of Dec 2009. It does not say whether these dates are actual or estimated.
Results were first posted in Jul 2015, 5 years 7 months after primary completion.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Jun 2015. You cannot join it, but the record below documents what was studied.
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