CClinicalTrials.gg
CompletedNCT04221334ConnectedUpdated Jan 9, 2020

Clinical Investigation Examining Plaque and Gingivitis Connected Toothbrush Compared to Non-Connected Toothbrush

An interventional study of Electric Toothbrush and oral health care application in Gingivitis and Plaque, Dental, sponsored by Colgate Palmolive. Completed at 1 site in United States. Open to participants aged 18 Years to 70 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-01-09.

Sponsored by Colgate Palmolive · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Primary completion was Jul 2019, 7 years 3 months ago, and no results have been posted to the registry.
  • Registered 5 months after the study started (first participant enrolled Apr 2019, registered Sep 2019).
Phase
Not applicable
Study type
Interventional
Enrollment
79
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

The objective of this clinical research study is to assess plaque and gingivitis reductions of Connected Toothbrush compared to Non-Connected Toothbrush over a six-week clinical study.

Read the detailed description

A phase II randomized, single-center, two-cell, examiner-blind and parallel-group clinical study conducted in the Loma Linda, California area, to investigate the clinical efficacy of a connected power toothbrush as compared to a non-connected power toothbrush in reducing dental plaque and gingivitis as measured by the Rustogi Modification of the Navy Plaque Index and Löe and Silness Gingival Index over a 6-week period.

02

Conditions studied

  • Gingivitis
  • Plaque, Dental
03

In context

Gingivitis

591 studies on the registry are indexed under Gingivitis; 104 are open to participants now.

This study's enrollment of 79 is above the median of 63 across 479 interventional studies indexed under Gingivitis.

Browse Gingivitis studies →

Lead sponsor

Colgate Palmolive is the lead sponsor of 114 studies on the registry; 12 are open to participants now.

Of its 33 completed or terminated interventional studies of FDA-regulated products, 2 (6%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

    • Male and female subjects had to be between the ages of 18 and 70 (inclusive),
    • Subjects needed to be available for the duration (6 weeks) of the study,
    • Subjects had to possess minimum of 20 uncrowned permanent natural teeth (excluding third molars),
    • Subjects were required to present and an initial mean gingivitis score of at least 1.0 as determined by the use of the Löe-Silness Gingival Index,
    • Subjects were required to present an initial mean plaque index of at least 0.6 as determined by the use of the Rustogi Modification of the Navy Plaque Index,
    • Subjects had to sign an Informed Consent form,
    • Subjects had to be in general good health and
    • Subjects with no known history of allergies to personal care/consumer products or their ingredients, relevant to any ingredients in the test products as determined by the dental/medical professional monitoring of the study.

Exclusion criteria

Exclusion:

    • Medical condition which require pre-medication prior to dental visits/procedures,
    • The presence of partial removable dentures,
    • Subjects who had advanced periodontal disease (gum disease),
    • Five (5) or more decayed or untreated dental sites at screening (cavities),
    • Subjects with diseases of the soft or hard oral tissues,
    • Subjects with orthodontic appliances/bands/lingual bars that interfere with any clinical assessment (plaque scoring),
    • Dry mouth as a result of a medication or medical condition,
    • Use of drugs that can currently affect salivary flow,
    • Use of antibiotics one (1) month prior to or during this study,
    • Use of any over the counter medications other than analgesics that could interfere with the study at PI discretion,
    • Chronic (>3 3 times/week) use of medications that are known to affect gingival tissues including steroids or non-steroidal anti-inflammatory medications or the listed medications (phenytoin, calcium antagonists, Coumadin, cyclosporine),
    • Any diseases that might affect the assessment of the study treatment or gingival tissues (rheumatoid arthritis, Crohn's disease, diabetes), ongoing chemotherapy for cancer, radiation therapy for head and neck cancer,
    • Pregnant or breast-feeding women were excluded from the study,
    • Subjects who participated in any other clinical study in the month preceding this study,
    • Allergic to common dentifrice ingredients,
    • Medical condition which prohibits not eating/drinking or chewing gum for 4 hours prior to their scheduled visit,
    • Immune compromised individuals (AIDS, immune suppressive drug therapy) and
    • History of infectious disease or other blood borne diseases (Hepatitis series, HIV).
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Care provider, Investigator, Outcomes assessor)
Enrollment
79 participants (actual)

Study arms

  • Active comparator
    Experimental Toothbrush 1

    1. A connected power toothbrush; brushed twice daily (morning and evening) for two (2) minutes, with Colgate Cavity Protection Toothpaste; Oral.

    Device: Electric Toothbrush · Other: oral health care application

  • Active comparator
    Experimental Toothbrush 2

    2. A non-connected power toothbrush; brushed twice daily (morning and evening) for two (2) minutes, with Colgate Cavity Protection Toothpaste; Oral.

    Device: Electric Toothbrush

Interventions

  • DeviceElectric Toothbrush

    Electric Toothbrush used to remove dental plaque and resolve gingivitis

  • Otheroral health care application

    phone application that shows the user brushing efficiency real time

06

What researchers measure

Primary outcomes

  1. change in mean dental plaque

    Reduction in plaque measurement is served as primary efficacy variable toothbrush for 6 weeks for each subject.

    Time frame: 3 and 6 weeks of product use

  2. change in mean gingivitis

    gingivitis measurement is served as secondary efficacy variable

    Time frame: 3 and 6 weeks of product use

07

Study locations

1 site
  • Loma Linda University
    Loma Linda, California 92350, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 9, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04221334
Lead sponsor
Colgate Palmolive
Collaborators
Loma Linda University
Responsible party
Sponsor
First posted
Jan 9, 2020
Start date
Apr 30, 2019
Primary completion
Jul 3, 2019
Completion
Jul 27, 2019
Last update
Jan 9, 2020

Study contacts

Yiming Yi, DDS/PhD
principal investigator · Loma Linda University

Oversight

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

Not currently enrolling

This study is completed, as verified in Jan 2020. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion