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CompletedNCT04025684Updated Jan 28, 2021Results posted

Efficacy of Manual Toothbrushes in Removing Dental Plaque

An interventional study of Oral B Indicator 123 and Dr Best Original in Dental Plaque and Oral Hygiene, sponsored by GlaxoSmithKline. Completed at 1 site in United Kingdom. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-01-28.

Sponsored by GlaxoSmithKline · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

This clinical methodology development study will evaluate the plaque removal efficacy of four marketed manual toothbrushes, with differing bristle types and brush head designs, in healthy dentate participants. Changes in supra-gingival plaque accumulation will be assessed after first use and following 1-and 4-weeks treatment (twice-daily brushing), using two different clinical measures of dental plaque. Study participants will abstain from oral hygiene for a period of 12-18 hours prior to each assessment visit. Data generated will inform the design of future clinical studies investigating the plaque removal efficacy of manual toothbrushes.

Read the detailed description

This will be a single center, 4-week, randomized, controlled, examiner-blind, four-treatment arm, parallel design, clinical methodology development study to investigate the plaque removal efficacy of marketed manual toothbrushes in healthy, dentate participants. Changes in plaque level will be evaluated after first brushing, after two further single brushing events (Days 7 and 28) and following 7 and 28 days usage (twice daily brushing with assigned toothbrush treatment).

Supra-gingival plaque levels will be assessed using two established clinical measures: the Rustogi Modified Navy Plaque Index (RPI) and the 6-site Turesky Modified Quigley and Hein Plaque Index (TPI). Participants will abstain from oral hygiene for a period of 12-18 hours prior to each assessment visit. Participants with Day 0 pre-brushing mean RPI overall ≥ 0.6 will be stratified by their Day 0 pre-brushing RPI score (lower: mean RPI overall ≥ 0.6 to ≤ 0.8; higher: mean RPI overall; 0.8 to 1.0) and randomized to study treatment (Visit 2).

To standardize oral hygiene practice, eligible participants will complete a lead-in period (minimum 5 days) prior to Visit 2 during which they will brush with the toothbrush and regular fluoride toothpaste provided.

The safety and oral tolerability of each study toothbrush will be monitored after first use and over the 28-day usage period by review of reported treatment emergent adverse events (TEAEs).

02

Conditions studied

  • Dental Plaque
  • Oral Hygiene

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Keywords

  • Oral Hygiene
03

In context

Dental Plaque

314 studies on the registry are indexed under Dental Plaque; 54 are open to participants now.

This study's enrollment of 80 is above the median of 59 across 279 interventional studies indexed under Dental Plaque.

Browse Dental Plaque studies →

Lead sponsor

GlaxoSmithKline is the lead sponsor of 3,562 studies on the registry; 117 are open to participants now.

Of its 258 completed or terminated interventional studies of FDA-regulated products, 232 (90%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

An individual must meet all the following inclusion criteria to be eligible for enrollment into the study.

  • Participant provision of a signed and dated informed consent document indicating that the participant has been informed of all pertinent aspects of the study before any assessment is performed.
  • A participant who is willing and able to comply with scheduled visits, treatment plan and other study procedures.
  • A participant in good general, mental and oral health with, in the opinion of the investigator or medically qualified designee, no clinically significant or relevant abnormalities in medical history or upon oral examination, or condition, that would impact the participant's safety, well-being or the outcome of the study, if they were to participate in the study, or affect the individual's ability to understand and follow study procedures and requirements.
  • A participant with, in the opinion of the investigator or medically qualified designee, satisfactory oral hygiene based on oral examination.
  • A participant who routinely uses a manual toothbrush for daily oral hygiene.
  • VISIT 1 (Screening): A participant must have a) ≥ 20 natural, permanent teeth b) ≥ 40 gradable tooth surfaces (≥ 2/3rds of the tooth surface assessable for RPI).Third molars, fully crowned/ extensively restored, grossly carious, orthodontically-banded/bonded or abutment teeth and surfaces with calculus deposits which, in the opinion of the clinical examiner, would interfere with plaque assessment should not be included in the gradable surface count. Third molars can be included if, as a result tooth loss, they are functioning as second molars.
  • VISIT 2 (Baseline): A participant must have a pre-brushing mean RPI ≥ 0.6 overall (that is, the mean over all gradable surfaces)

Exclusion criteria

Exclusion Criteria:

An individual who meets any of the following exclusion criteria will not be eligible for enrollment into the study.

  • A participant who is an employee of the investigational site, either directly involved in the conduct of the study or otherwise supervised by the investigator, or a member of their immediate family; or a GSK CH employee directly involved in the conduct of the study or a member of their immediate family.
  • A participant who has participated in other studies (including non-medicinal studies) involving investigational product(s) in the 30 days prior to study entry and/or who is participating in other studies during study participation.
  • A participant with, in the opinion of the investigator or medically qualified designee, an acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgment of the investigator or medically qualified designee, would make the participant inappropriate for entry into this study.
  • A participant with any medical/oral condition which, in the opinion of the investigator or medically qualified designee, could impact study outcomes (for example, oral dryness).
  • A participant taking daily doses of medication/having daily treatments which, in the opinion of the investigator or medically qualified designee, could impact study outcomes (for example, is causing oral dryness).
  • A participant with any condition or physical limitation which, in the opinion of the investigator or medically qualified designee, impacts their ability to perform oral hygiene with a manual toothbrush.
  • A participant who is pregnant (self-reported; no pregnancy test required) or intending to become pregnant over the course of the study.
  • A participant who is breastfeeding.
  • A participant with known or suspected intolerance or hypersensitivity to the study materials (or closely related compounds) or any of their stated ingredients.
  • A participant who is unwilling or unable to comply with the following Lifestyle Considerations described in this protocol: 1) Dental Product/Treatment and Oral Hygiene Restrictions i)From Screening (Visit 1) to the Participant's Last Study Visit: a) Participants should not use any other oral care products (for example, toothpastes, toothbrushes, oral rinses, tongue cleaners, whitening/bleaching products, inter-dental cleaning products)than those provided during the study. Note: dental floss (non-antibacterial) can be used to remove impacted food; b) Participants should not chew gum or consume any confectionery containing xylitol (e.g. sugar-free mints); c) Participants should delay any non-emergency dental treatment until after study completion (including dental prophylaxis); d)Participants should delay any tooth whitening treatments (professional and/or home use) until after study completion; ii) Before Clinical Efficacy Assessment Visits (Visits 2-4): Participants should refrain from oral hygiene procedures for 12-18 hours before their visit; 2) Meals and Dietary Restrictions i) Before Clinical Efficacy Assessment Visits (Visits 2-4): Participants should not eat or drink for ≥ 1 hour before their visit and until all visit procedures have been completed.
  • A participant who has had routine dental prophylaxis within 4 weeks of Screening.
  • A participant who has undergone a tooth bleaching procedure within 8 weeks of Screening.
  • A participant with, in the opinion of the investigator or medically qualified designee, generalized moderate/severe gingivitis.
  • A participant with, in the opinion of the investigator or medically qualified designee, gross periodontal disease.
  • A participant with, in the opinion of the investigator or medically qualified designee, signs of active periodontitis.
  • A participant with a Basic Periodontal Examination (BPE) score ≥ 3 in any sextant.
  • A participant who has undergone treatment for periodontal disease within 12 months of Screening, including scaling and/or root surface debridement.
  • A participant who is currently undergoing treatment for periodontal disease, including scaling and/or root surface debridement.
  • A participant with active caries which, in the opinion of the investigator or medically qualified designee, could impact study outcomes or the oral health of the participant if they were to participate in the study.
  • A participant with, in the opinion of the investigator or medically qualified designee, evidence of gross intra-oral neglect or the need for extensive dental therapy.
  • A participant with restorations in a poor state of repair which, in the opinion of the investigator or medically qualified designee, could impact study outcomes.
  • A participant with any dental condition (e.g. malalignment, overcrowding) which, in the opinion of the investigator or medically qualified designee, could impact study outcomes.
  • A participant with high levels of extrinsic dental stain or calculus deposits which, in the opinion of the investigator or medically qualified designee, would interfere with plaque assessment or impact study outcomes.
  • A participant with a tongue or lip piercing.
  • A participant with multiple dental implants which, in the opinion of the investigator or medically qualified designee, could impact study outcomes.
  • A participant with fixed bridge(s) or removable partial dentures.
  • A participant with fixed or removable orthodontic braces/bands or a fixed orthodontic retainer.
  • A participant who has had fixed or removable orthodontic braces/bands within 3 months of Screening.
  • A participant who is unwilling to forgo use of an orthodontic retainer for the duration of the study, provided there would be no impact on the outcome of any previous, completed orthodontic treatment or the participant's well-being.
  • VISIT 1 (Screening): A participant who has taken antibiotics within 2 weeks of Screening.
  • VISIT 2 (Baseline): A participant who has taken antibiotics during the lead-in period (between Screening and Visit 2).
  • Participant with a recent history (within the last year) of alcohol or other substance abuse.
  • A participant who, in the opinion of the investigator or medically qualified designee, should not participate in the study.
  • A participant who has previously been enrolled in this study.
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Investigator, Outcomes assessor)
Enrollment
80 participants (actual)

Study arms

  • Other
    Test toothbrush 1

    Participants will brush their entire dentition twice daily (morning and evening) for 1-timed minute with test toothbrush 1 after applying a strip of standard fluoride (1450 parts per million \[ppm\] fluoride) toothpaste (full brush head) and will then rinse with 10 mL of water post brushing for 5 seconds (on site). Offsite participants will be permitted to rinse with tap water according to their normal habitat.

    Other: Oral B Indicator 123

  • Other
    Test toothbrush 2

    Participants will brush their entire dentition twice daily (morning and evening) for 1-timed minute with test toothbrush 2 after applying a strip of standard fluoride (1450 ppm fluoride) toothpaste (full brush head) and will then rinse with 10 mL of water post brushing for 5 seconds (on site). Offsite participants will be permitted to rinse with tap water according to their normal habitat.

    Other: Dr Best Original

  • Other
    Test toothbrush 3

    Participants will brush their entire dentition twice daily (morning and evening) for 1-timed minute with test toothbrush 3 after applying a strip of standard fluoride (1450 ppm fluoride) toothpaste (full brush head) and will then rinse with 10 mL of water post brushing for 5 seconds (on site). Offsite participants will be permitted to rinse with tap water according to their normal habitat.

    Other: Dr Best Multi Expert

  • Other
    Test toothbrush 4

    Participants will brush their entire dentition twice daily (morning and evening) for 1-timed minute with test toothbrush 4 after applying a strip of standard fluoride (1450 ppm fluoride) toothpaste (full brush head) and will then rinse with 10 mL of water post brushing for 5 seconds (on site). Offsite participants will be permitted to rinse with tap water according to their normal habitat.

    Other: parodontax Interdental

Interventions

  • OtherOral B Indicator 123

    Manual toothbrush (medium bristle stiffness; compact head, UK market).

  • OtherDr Best Original

    Manual toothbrush (medium bristle stiffness; regular head, German market)

  • OtherDr Best Multi Expert

    Manual toothbrush (medium bristle stiffness; compact head, German market)

  • Otherparodontax Interdental

    Manual toothbrush (soft bristle stiffness; compact head, German market)

06

What researchers measure

Primary outcomes

  1. Change From Pre to Post Brushing in Overall Mean Rustogi Modified Navy Plaque Index (RPI) After a Single Brushing Event at Day 0

    Supra-gingival plaque was assessed on the facial and lingual surfaces of the teeth (7-7 each arch) using RPI. Each tooth surface was divided into 9 zones, for a total of 18 sites per tooth (A to I facial with 9 sites and lingual with 9 sites separately); A to C along gingival margin; D to F directly above A to C (D and F being inter-proximal zones); G to H across middle of tooth; and I covered incisal area. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from pre-brushing = (post-brushing score - pre-brushing score). Overall mean calculated for all participants was reported.

    Time frame: At Day 0

  2. Change From Pre to Post Brushing in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) After a Single Brushing Event at Day 0

    Supra-gingival plaque accumulation was assessed on facial and lingual surfaces of teeth (7-7 in each arch) using TPI. Plaque was assessed with each tooth being divided into 6 areas including mesiofacial, facial, distofacial, mesiolingual, lingual and distolingual surfaces and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1millimetre \[mm\] or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from pre-brushing = (post-brushing score - pre-brushing score). Overall mean calculated for all participants was reported.

    Time frame: At Day 0

Secondary outcomes

  1. Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Overall Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 and Day 28

    Supra-gingival plaque was assessed on the facial and lingual surfaces of the teeth (7-7 each arch) using RPI. Each tooth surface was divided into 9 zones, for a total of 18 sites per tooth (A to I facial with 9 sites and lingual with 9 sites separately); A to C along gingival margin; D to F directly above A to C (D and F being inter-proximal zones); G to H across middle of tooth; and I covered incisal area. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28 = (post-brushing score at Day 7/28- pre-brushing score at Day 0). Overall mean calculated for all participants was reported.

    Time frame: At Day 0, Day 7 and Day 28

  2. Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 and Day 28

    Supra-gingival plaque accumulation was assessed on facial and lingual surfaces of teeth (7-7 in each arch) using TPI. Plaque was assessed with each tooth being divided into 6 areas including mesiofacial, facial, distofacial, mesiolingual, lingual and distolingual surfaces and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28 = (post-brushing score at Day 7/28- pre-brushing score at Day 0). Overall mean calculated for all participants was reported.

    Time frame: At Day 0, Day 7 and Day 28

  3. Overall Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 7 and Day 28

    Supra-gingival plaque was assessed on the facial and lingual surfaces of the teeth (7-7 each arch) using RPI. Each tooth surface was divided into 9 zones, for a total of 18 sites per tooth (A to I facial with 9 sites and lingual with 9 sites separately); A to C along gingival margin; D to F directly above A to C (D and F being inter-proximal zones); G to H across middle of tooth; and I covered incisal area. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Overall mean calculated for all participants was reported.

    Time frame: At Day 7 and Day 28

  4. Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) Pre- and Post-brushing TPI at Day 7, and Day 28

    Supra-gingival plaque accumulation was assessed on facial and lingual surfaces of teeth (7-7 in each arch) using TPI. Plaque was assessed with each tooth being divided into 6 areas including mesiofacial, facial, distofacial, mesiolingual, lingual and distolingual surfaces and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Overall mean calculated for all participants was reported.

    Time frame: At Day 7 and Day 28

  5. Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 0, Day 7 and Day 28

    Supra-gingival plaque accumulation was assessed for gingival zone A to C. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 0/7/28= (post-brushing score at Day 0/7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.

    Time frame: At Day 0, Day 7 and Day 28

  6. Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 0, Day 7 and Day 28

    Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 0/7/28= (post-brushing score at Day 0/7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.

    Time frame: At Day 0, Day 7 and Day 28

  7. Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 0, Day 7 and Day 28

    Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 0/7/28= (post-brushing score at Day 0/7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.

    Time frame: At Day 0, Day 7 and Day 28

  8. Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 0, Day 7 and Day 28

    Supra-gingival plaque accumulation was assessed for gingival zone A to C. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Mean calculated for all participants was reported.

    Time frame: At Day 0, Day 7 and Day 28

  9. Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 0, Day 7 and Day 28

    Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Mean calculated for all participants was reported.

    Time frame: At Day 0, Day 7 and Day 28

  10. Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) Pre- and Post-brushing TPI at Day 0, Day 7 and Day 28

    Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Mean calculated for all participants was reported.

    Time frame: At Day 0, Day 7 and Day 28

  11. Change From Baseline (Day 0 Pre-Brushing) in Overall Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing

    Supra-gingival plaque was assessed on the facial and lingual surfaces of the teeth (7-7 each arch) using RPI. Each tooth surface was divided into 9 zones, for a total of 18 sites per tooth (A to I facial with 9 sites and lingual with 9 sites separately); A to C along gingival margin; D to F directly above A to C (D and F being inter-proximal zones); G to H across middle of tooth; and I covered incisal area. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Overall mean calculated for all participants was reported.

    Time frame: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing

  12. Change From Baseline (Day 0 Pre-Brushing) in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 Pre-brushing and Day 28 Pre-brushing

    Supra-gingival plaque accumulation was assessed on facial and lingual surfaces of teeth (7-7 in each arch) using TPI. Plaque was assessed with each tooth being divided into 6 areas including mesiofacial, facial, distofacial, mesiolingual, lingual and distolingual surfaces and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Overall mean calculated for all participants was reported.

    Time frame: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing

  13. Change From Baseline (Day 0 Pre-Brushing) in Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing

    Supra-gingival plaque accumulation was assessed for gingival zone A to C. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.

    Time frame: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing

  14. Change From Baseline (Day 0 Pre-Brushing) in Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing

    Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.

    Time frame: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing

  15. Change From Baseline (Day 0 Pre-Brushing) in Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 Pre-brushing and Day 28 Pre-brushing

    Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.

    Time frame: At Day 0, Day 7 pre-brushing and Day 28 pre-brushing

07

Results

Posted Jan 28, 2021

Participant flow

The study was conducted at single center in United Kingdom.

Participant flow — Overall Study
MilestoneOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
Started20192021
Completed18152020
Not completed2401
Withdrew: Withdrawal by subject1100
Withdrew: Multiple reasons1301

Outcome measures

PrimaryChange From Pre to Post Brushing in Overall Mean Rustogi Modified Navy Plaque Index (RPI) After a Single Brushing Event at Day 0

Supra-gingival plaque was assessed on the facial and lingual surfaces of the teeth (7-7 each arch) using RPI. Each tooth surface was divided into 9 zones, for a total of 18 sites per tooth (A to I facial with 9 sites and lingual with 9 sites separately); A to C along gingival margin; D to F directly above A to C (D and F being inter-proximal zones); G to H across middle of tooth; and I covered incisal area. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from pre-brushing = (post-brushing score - pre-brushing score). Overall mean calculated for all participants was reported.

Time frame:
At Day 0
Reported as:
Mean · score on a scale
Change From Pre to Post Brushing in Overall Mean Rustogi Modified Navy Plaque Index (RPI) After a Single Brushing Event at Day 0
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
Change From Pre to Post Brushing in Overall Mean Rustogi Modified Navy Plaque Index (RPI) After a Single Brushing Event at Day 0-0.09623 ± 0.052741-0.12005 ± 0.055350-0.09859 ± 0.045509-0.09599 ± 0.044436
Statistical analysis
  • Oral B Indicator 123 · ANCOVA · p = <.0001 (Analysis was performed using ANCOVA Model with product group as a fixed effect and the baseline mean RPI overall value as a covariate.) · Adjusted mean change: -0.10 · 95% CI -0.11 to -0.08
  • Dr Best Original · ANCOVA · p = <0.0001 (Analysis was performed using ANCOVA model with product group as a fixed effect and the baseline mean RPI overall value as a covariate.) · Adjusted mean change: -0.12 · 95% CI -0.14 to -0.10
  • Dr Best Multi Expert · ANCOVA · p = <0.0001 (Analysis was performed using ANCOVA model with product group as a fixed effect and the baseline mean RPI overall value as a covariate.) · Adjusted mean change: -0.10 · 95% CI -0.12 to -0.08
  • Parodontax Interdental · ANCOVA · p = <0.0001 (Analysis was performed using ANCOVA model with product group as a fixed effect and the baseline mean RPI overall value as a covariate.) · Adjusted mean change: -0.10 · 95% CI -0.12 to -0.08
PrimaryChange From Pre to Post Brushing in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) After a Single Brushing Event at Day 0

Supra-gingival plaque accumulation was assessed on facial and lingual surfaces of teeth (7-7 in each arch) using TPI. Plaque was assessed with each tooth being divided into 6 areas including mesiofacial, facial, distofacial, mesiolingual, lingual and distolingual surfaces and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1millimetre \[mm\] or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from pre-brushing = (post-brushing score - pre-brushing score). Overall mean calculated for all participants was reported.

Time frame:
At Day 0
Reported as:
Mean · Score on a scale
Change From Pre to Post Brushing in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) After a Single Brushing Event at Day 0
Score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
Change From Pre to Post Brushing in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) After a Single Brushing Event at Day 0-0.49354 ± 0.312963-0.62218 ± 0.340491-0.57721 ± 0.347314-0.53714 ± 0.273720
Statistical analysis
  • Oral B Indicator 123 · ANCOVA · p = <0.0001 (Analysis was performed using ANCOVA model with product group as a fixed effect, and the baseline mean TPI overall value and RPI stratification level as covariates.) · Adjusted mean change: -0.50 · 95% CI -0.62 to -0.37
  • Dr Best Original · ANCOVA · p = <0.0001 (Analysis was performed using ANCOVA model with product group as a fixed effect, and the baseline mean TPI overall value and RPI stratification level as covariates.) · Adjusted mean change: -0.62 · 95% CI -0.75 to -0.49
  • Dr Best Multi Expert · ANCOVA · p = <0.0001 (Analysis was performed using ANCOVA model with product group as a fixed effect, and the baseline mean TPI overall value and RPI stratification level as covariates.) · Adjusted mean change: -0.55 · 95% CI -0.68 to -0.42
  • Parodontax Interdental · ANCOVA · p = <0.0001 (Analysis was performed using ANCOVA model with product group as a fixed effect, and the baseline mean TPI overall value and RPI stratification level as covariates.) · Adjusted mean change: -0.57 · 95% CI -0.70 to -0.44
SecondaryChange From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Overall Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 and Day 28

Supra-gingival plaque was assessed on the facial and lingual surfaces of the teeth (7-7 each arch) using RPI. Each tooth surface was divided into 9 zones, for a total of 18 sites per tooth (A to I facial with 9 sites and lingual with 9 sites separately); A to C along gingival margin; D to F directly above A to C (D and F being inter-proximal zones); G to H across middle of tooth; and I covered incisal area. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28 = (post-brushing score at Day 7/28- pre-brushing score at Day 0). Overall mean calculated for all participants was reported.

Time frame:
At Day 0, Day 7 and Day 28
Reported as:
Mean · score on a scale
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Overall Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 and Day 28
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
Change at Day 7 Post brushing-0.13485 ± 0.057076-0.16648 ± 0.074227-0.09813 ± 0.068715-0.11839 ± 0.059674
Change at Day 28 Post brushing-0.14738 ± 0.071082-0.16234 ± 0.047753-0.12854 ± 0.085085-0.11835 ± 0.070860
SecondaryChange From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 and Day 28

Supra-gingival plaque accumulation was assessed on facial and lingual surfaces of teeth (7-7 in each arch) using TPI. Plaque was assessed with each tooth being divided into 6 areas including mesiofacial, facial, distofacial, mesiolingual, lingual and distolingual surfaces and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28 = (post-brushing score at Day 7/28- pre-brushing score at Day 0). Overall mean calculated for all participants was reported.

Time frame:
At Day 0, Day 7 and Day 28
Reported as:
Mean · score on a scale
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 and Day 28
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
Change at Day 7 Post brushing-0.71646 ± 0.290669-0.90569 ± 0.436986-0.63582 ± 0.417132-0.61935 ± 0.348844
Change at Day 28 Post brushing-0.75755 ± 0.330047-0.79959 ± 0.281520-0.70769 ± 0.438260-0.60327 ± 0.379847
SecondaryOverall Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 7 and Day 28

Supra-gingival plaque was assessed on the facial and lingual surfaces of the teeth (7-7 each arch) using RPI. Each tooth surface was divided into 9 zones, for a total of 18 sites per tooth (A to I facial with 9 sites and lingual with 9 sites separately); A to C along gingival margin; D to F directly above A to C (D and F being inter-proximal zones); G to H across middle of tooth; and I covered incisal area. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Overall mean calculated for all participants was reported.

Time frame:
At Day 7 and Day 28
Reported as:
Mean · score on a scale
Overall Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 7 and Day 28
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
At Day 7 Pre-brushing0.443 ± 0.07390.438 ± 0.08590.468 ± 0.07380.449 ± 0.0654
At Day 7 Post-brushing0.352 ± 0.06950.333 ± 0.07490.390 ± 0.09240.352 ± 0.0681
At Day 28 Pre-brushing0.443 ± 0.09200.467 ± 0.08880.467 ± 0.07210.434 ± 0.0756
At Day 28 Post-brushing0.340 ± 0.11130.343 ± 0.09740.360 ± 0.08020.352 ± 0.0736
SecondaryOverall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) Pre- and Post-brushing TPI at Day 7, and Day 28

Supra-gingival plaque accumulation was assessed on facial and lingual surfaces of teeth (7-7 in each arch) using TPI. Plaque was assessed with each tooth being divided into 6 areas including mesiofacial, facial, distofacial, mesiolingual, lingual and distolingual surfaces and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Overall mean calculated for all participants was reported.

Time frame:
At Day 7 and Day 28
Reported as:
Mean · score on a scale
Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) Pre- and Post-brushing TPI at Day 7, and Day 28
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
At Day 7 Pre-brushing2.361 ± 0.41982.368 ± 0.52182.508 ± 0.42702.446 ± 0.3834
At Day 7 Post-brushing1.803 ± 0.40841.669 ± 0.42461.945 ± 0.51751.816 ± 0.3902
At Day 28 Pre-brushing2.327 ± 0.52632.459 ± 0.40622.452 ± 0.27732.346 ± 0.3421
At Day 28 Post-brushing1.766 ± 0.55491.788 ± 0.51611.870 ± 0.42091.832 ± 0.4330
SecondaryChange From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 0, Day 7 and Day 28

Supra-gingival plaque accumulation was assessed for gingival zone A to C. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 0/7/28= (post-brushing score at Day 0/7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.

Time frame:
At Day 0, Day 7 and Day 28
Reported as:
Mean · score on a scale
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 0, Day 7 and Day 28
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
Change at Day 0 Post brushing-0.04938 ± 0.054115-0.09034 ± 0.092453-0.05344 ± 0.059657-0.07211 ± 0.058880
Change at Day 7 Post brushing-0.12498 ± 0.096075-0.16961 ± 0.132531-0.09456 ± 0.095039-0.12165 ± 0.089975
Change at Day 28 Post brushing-0.17348 ± 0.152077-0.16314 ± 0.156324-0.12075 ± 0.123455-0.10500 ± 0.110297
SecondaryChange From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 0, Day 7 and Day 28

Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 0/7/28= (post-brushing score at Day 0/7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.

Time frame:
At Day 0, Day 7 and Day 28
Reported as:
Mean · score on a scale
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 0, Day 7 and Day 28
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
Change at Day 0 Post brushing-0.26809 ± 0.130993-0.28219 ± 0.133379-0.25775 ± 0.123545-0.22865 ± 0.130830
Change at Day 7 Post brushing-0.31485 ± 0.161214-0.33171 ± 0.188937-0.21269 ± 0.167972-0.24499 ± 0.172251
Change at Day 28 Post brushing-0.30399 ± 0.153080-0.32138 ± 0.130552-0.26825 ± 0.188777-0.25411 ± 0.191171
SecondaryChange From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 0, Day 7 and Day 28

Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 0/7/28= (post-brushing score at Day 0/7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.

Time frame:
At Day 0, Day 7 and Day 28
Reported as:
Mean · score on a scale
Change From Baseline (Day 0 Pre-Brushing) to Post-Brushing in Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 0, Day 7 and Day 28
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
Change at Day 0 Post brushing-0.49949 ± 0.314629-0.60975 ± 0.337375-0.58666 ± 0.352225-0.49861 ± 0.291868
Change at Day 7 Post brushing-0.72054 ± 0.293855-0.89035 ± 0.429582-0.62843 ± 0.400444-0.56209 ± 0.365074
Change at Day 28 Post brushing-0.78797 ± 0.326878-0.81581 ± 0.261399-0.72924 ± 0.445553-0.58135 ± 0.389490
SecondaryGingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 0, Day 7 and Day 28

Supra-gingival plaque accumulation was assessed for gingival zone A to C. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Mean calculated for all participants was reported.

Time frame:
At Day 0, Day 7 and Day 28
Reported as:
Mean · score on a scale
Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 0, Day 7 and Day 28
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
At Day 0 Pre-brushing0.988 ± 0.02270.987 ± 0.02130.992 ± 0.01150.981 ± 0.0481
At Day 0 Post-brushing0.939 ± 0.06350.896 ± 0.09320.939 ± 0.05770.909 ± 0.0894
At Day 7 Pre-brushing0.966 ± 0.04880.952 ± 0.08310.978 ± 0.03760.969 ± 0.0406
At Day 7 Post-brushing0.863 ± 0.10460.818 ± 0.14290.898 ± 0.09310.859 ± 0.1056
At Day 28 Pre-brushing0.945 ± 0.10940.974 ± 0.04360.983 ± 0.02520.964 ± 0.0657
At Day 28 Post-brushing0.814 ± 0.16250.825 ± 0.16860.871 ± 0.12180.876 ± 0.1127
SecondaryInter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 0, Day 7 and Day 28

Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Mean calculated for all participants was reported.

Time frame:
At Day 0, Day 7 and Day 28
Reported as:
Mean · score on a scale
Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) Pre- and Post-brushing at Day 0, Day 7 and Day 28
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
At Day 0 Pre-brushing0.523 ± 0.21210.499 ± 0.22170.507 ± 0.16260.467 ± 0.1910
At Day 0 Post-brushing0.255 ± 0.15510.217 ± 0.16110.249 ± 0.14220.238 ± 0.1397
At Day 7 Pre-brushing0.389 ± 0.20410.371 ± 0.20830.453 ± 0.19690.408 ± 0.1668
At Day 7 Post-brushing0.214 ± 0.13440.191 ± 0.10800.294 ± 0.20480.222 ± 0.1187
At Day 28 Pre-brushing0.431 ± 0.22990.442 ± 0.23410.479 ± 0.23700.381 ± 0.2083
At Day 28 Post-brushing0.227 ± 0.21360.217 ± 0.14780.239 ± 0.16660.213 ± 0.1640
SecondaryInter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) Pre- and Post-brushing TPI at Day 0, Day 7 and Day 28

Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Mean calculated for all participants was reported.

Time frame:
At Day 0, Day 7 and Day 28
Reported as:
Mean · score on a scale
Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) Pre- and Post-brushing TPI at Day 0, Day 7 and Day 28
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
At Day 0 Pre-brushing2.643 ± 0.39652.649 ± 0.43382.737 ± 0.34252.552 ± 0.4292
At Day 0 Post-brushing2.141 ± 0.37352.041 ± 0.38152.149 ± 0.26422.054 ± 0.4217
At Day 7 Pre-brushing2.481 ± 0.43962.493 ± 0.49492.635 ± 0.45642.577 ± 0.4149
At Day 7 Post-brushing1.937 ± 0.42081.821 ± 0.40752.109 ± 0.51911.991 ± 0.3755
At Day 28 Pre-brushing2.410 ± 0.52282.550 ± 0.39682.561 ± 0.29382.454 ± 0.3358
At Day 28 Post-brushing1.871 ± 0.56451.911 ± 0.49942.007 ± 0.41221.972 ± 0.4141
SecondaryChange From Baseline (Day 0 Pre-Brushing) in Overall Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing

Supra-gingival plaque was assessed on the facial and lingual surfaces of the teeth (7-7 each arch) using RPI. Each tooth surface was divided into 9 zones, for a total of 18 sites per tooth (A to I facial with 9 sites and lingual with 9 sites separately); A to C along gingival margin; D to F directly above A to C (D and F being inter-proximal zones); G to H across middle of tooth; and I covered incisal area. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Overall mean calculated for all participants was reported.

Time frame:
At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Reported as:
Mean · score on a scale
Change From Baseline (Day 0 Pre-Brushing) in Overall Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
At Day 7 Pre-brushing-0.04465 ± 0.060772-0.06178 ± 0.058426-0.01992 ± 0.050254-0.02163 ± 0.056758
At Day 28 Pre-brushing-0.04420 ± 0.060384-0.03796 ± 0.060434-0.02121 ± 0.061780-0.03689 ± 0.075670
SecondaryChange From Baseline (Day 0 Pre-Brushing) in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 Pre-brushing and Day 28 Pre-brushing

Supra-gingival plaque accumulation was assessed on facial and lingual surfaces of teeth (7-7 in each arch) using TPI. Plaque was assessed with each tooth being divided into 6 areas including mesiofacial, facial, distofacial, mesiolingual, lingual and distolingual surfaces and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Overall mean calculated for all participants was reported.

Time frame:
At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Reported as:
Mean · score on a scale
Change From Baseline (Day 0 Pre-Brushing) in Overall Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
At Day 7 pre-brushing-0.15663 ± 0.307019-0.20746 ± 0.360506-0.07029 ± 0.3150990.01187 ± 0.282108
At Day 28 pre-brushing-0.19667 ± 0.343446-0.12896 ± 0.236209-0.12756 ± 0.302698-0.08991 ± 0.357293
SecondaryChange From Baseline (Day 0 Pre-Brushing) in Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing

Supra-gingival plaque accumulation was assessed for gingival zone A to C. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.

Time frame:
At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Reported as:
Mean · score on a scale
Change From Baseline (Day 0 Pre-Brushing) in Gingival Margin Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
At Day 7 pre-brushing-0.02233 ± 0.035312-0.03645 ± 0.066621-0.01378 ± 0.040284-0.01219 ± 0.038447
At Day 28 pre-brushing-0.04272 ± 0.100638-0.01355 ± 0.034877-0.00943 ± 0.026501-0.01715 ± 0.083641
SecondaryChange From Baseline (Day 0 Pre-Brushing) in Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing

Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and presence or absence of plaque in each zone was recorded as per scoring criteria: 0-Plaque absent, 1-Plaque present; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.

Time frame:
At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Reported as:
Mean · score on a scale
Change From Baseline (Day 0 Pre-Brushing) in Inter-Proximal Sites Mean Rustogi Modified Navy Plaque Index (RPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
At Day 7 pre-brushing-0.13944 ± 0.184635-0.15199 ± 0.162624-0.05413 ± 0.144292-0.05919 ± 0.175623
At Day 28 pre-brushing-0.09970 ± 0.132324-0.09659 ± 0.197697-0.02755 ± 0.204586-0.08592 ± 0.215974
SecondaryChange From Baseline (Day 0 Pre-Brushing) in Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 Pre-brushing and Day 28 Pre-brushing

Supra-gingival plaque accumulation was assessed for inter-proximal zones D to F. Plaque was disclosed and scored for each site on a scale of 0 to 5: 0-No plaque, 1-Slight flecks of plaque at cervical margin of tooth, 2-Thin, continuous band of plaque (1mm or smaller) at cervical margin of tooth, 3-Band of plaque wider than 1mm but covering less than 1/3 of area, 4-Plaque covering at least 1/3 but less than 2/3 of area, 5-Plaque covering 2/3 or more of crown of tooth; where lower score represents better result. An average score for a participant was generated by averaging across all sites and surfaces of all teeth assessed. Change from Day 0 pre-brushing at Day 7/28= (pre-brushing score at Day 7/28- pre-brushing score at Day 0). Mean calculated for all participants was reported.

Time frame:
At Day 0, Day 7 pre-brushing and Day 28 pre-brushing
Reported as:
Mean · Score on a scale
Change From Baseline (Day 0 Pre-Brushing) in Inter-Proximal Sites Mean Turesky Modified Quigley & Hein Plaque Index (TPI) at Day 7 Pre-brushing and Day 28 Pre-brushing
Score on a scaleOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
At Day 7 pre-brushing-0.17652 ± 0.309335-0.21666 ± 0.366396-0.10226 ± 0.3155500.02326 ± 0.316914
At Day 28 pre-brushing-0.25042 ± 0.332584-0.17761 ± 0.225399-0.17561 ± 0.327045-0.09889 ± 0.370219

Adverse events

Collected over Up to 35 days. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Oral B Indicator 1230/20 (0%)0/20 (0%)0/20 (0%)
Dr Best Original0/19 (0%)0/19 (0%)2/19 (10.5%)
Dr Best Multi Expert0/20 (0%)0/20 (0%)1/20 (5%)
Parodontax Interdental0/21 (0%)0/21 (0%)1/21 (4.8%)
Most frequent other events
Most frequent other events
EventOral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax Interdental
PharyngitisInfections and infestations0/201/190/200/21
Pain in jawMusculoskeletal and connective tissue disorders0/201/190/200/21
Tooth injuryInjury, poisoning and procedural complications0/200/191/200/21
Tooth fractureInjury, poisoning and procedural complications0/200/190/201/21
Gingival painGastrointestinal disorders0/200/190/201/21

Baseline characteristics

Safety population included all randomized participants who completed at least one use of study product.

Age, Categorical
Age, Categorical(Participants)Oral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax InterdentalTotal
<=18 years00000
Between 18 and 65 years2019202079
>=65 years00011
Sex: Female, Male
Sex: Female, Male(Participants)Oral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax InterdentalTotal
Female1412101652
Male6710528
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Oral B Indicator 123Dr Best OriginalDr Best Multi ExpertParodontax InterdentalTotal
American Indian or Alaska Native00000
Asian52119
Native Hawaiian or Other Pacific Islander00000
Black or African American31419
White1216151962
More than one race00000
Unknown or Not Reported00000
08

Study locations

1 site
  • GSK Investigational Site
    Birmingham, West Midlands B5 7EG, United Kingdom
09

References and documents

Study documents

  • Study protocol · Oct 16, 2019
  • Statistical analysis plan · Nov 5, 2019

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: Yes — IPD for this study will be made available via the Clinical Study Data Request site.

Supporting information: Study protocol, Sap, Icf, Csr

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 28, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04025684
Lead sponsor
GlaxoSmithKline
Responsible party
Sponsor
First posted
Jul 19, 2019
Start date
Sep 30, 2019
Primary completion
Dec 10, 2019
Completion
Dec 10, 2019
Results posted
Jan 28, 2021
Last update
Jan 28, 2021

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2021. You cannot join it, but the record below documents what was studied.

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Discussion

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