Plaque, DentalPhase 2NCT06565897
Clinical Investigation to Assess the Efficacy of Manual Toothbrushes in the Reduction of Plaque and Gingivitis.
A Phase 2 study testing Test regimen in people with Plaque, Dental and Gingivitis, run by Colgate Palmolive at 1 site in United States.
Trial summary
Qualified subjects will be enrolled and randomized to one of the two study groups based on their initial Plaque and Gingivitis scores. Subjects will be instructed to use the products according to the instructions provided. Read more about this study
- Who is it for?
- Ages 18 to 70 yearsHealthy volunteers can take part
- Conditions the study is for
- Plaque, Dental, Gingivitis
- What is being tested?
- Test regimen
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 84 participants
- Where
- 1 siteUnited States
- Study dates
- 26 Jul 2024to 10 Sep 2024
- Phase
- Phase 2
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 70 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Signed Informed Consent Form.
- Male and female subjects aged 18-70 years, inclusive.
- Availability for the six-week duration of the clinical research study.
- Good general health based on the opinion of the study investigator
- Minimum of 20 permanent natural teeth (excluding third molars).
- Initial gingivitis index of at least 1.0 as determined by the use of the Loe and Silness Gingival Index.
- Initial mean plaque index of at least 0.6 as determined by Navy Plaque index.
Who cannot join
- Presence of orthodontic appliances.
- Presence of partial removable dentures.
- Tumor(s) of the soft or hard tissues of the oral cavity.
- Moderate and/or advanced periodontal disease, rampant caries, or any condition that the dental examiner considers exclusionary from the study.
- Five or more carious lesions requiring immediate restorative treatment.
- Antibiotic use any time during the one-month period prior to entry into the study.
Show all 13Show fewer
- Participation in any other clinical study or test panel within the one month prior to entry into the study.
- Dental prophylaxis during the past two weeks prior to baseline examinations.
- History of allergies to oral care/personal care consumer products or their ingredients.
- On any prescription medicines that might interfere with the study outcome.
- An existing medical condition that prohibits eating and/or drinking for periods up to 4 hours.
- History of alcohol and/or drug abuse.
- Self-reported pregnancy and/or lactating subjects.
Trial locations and contacts
1 site in 1 country.
United States1 site
Consumer Research Consulting, LLC
Melbourne, Florida, 32940
About this study
Official title: Clinical Investigation to Assess the Efficacy of Manual Toothbrushes in the Reduction of Established Plaque and Gingivitis: a 6-week Clinical Study
Qualified subjects will be enrolled and randomized to one of the two study groups based on their initial Plaque and Gingivitis scores. Subjects will be instructed to use the products according to the instructions provided. Subjects will return to the dental office for evaluation after 1, 3, and 6, weeks of unsupervised product use at home. All subjects will be followed for adverse events throughout the study
- Conditions
- Plaque, Dental, Gingivitis
- Being tested
- Test regimen, Control regimen
- Medical subject headings
- Dental Plaque, Gingivitis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Test regimenDrug
toothpaste \& manual toothbrush
Control regimenDrug
toothpaste \& manual toothbrush
| Study group | Role | What they receive |
|---|---|---|
| Test regimen | Experimental | Brush with full ribbon toothpaste, 2x day / 2mins with paste \& toothbrush provided Receives: Drug: Test regimen |
| Control regimen | Active comparator | Brush with full ribbon toothpaste, 2x day / 2mins with paste \& toothbrush provided Receives: Drug: Control regimen |
What is being measured
The primary outcome is the main question the study is designed to answer.
Plaque assessment
The dentition will be disclosed with disclosing solution and plaque scored according to the Refined Navy Plaque Index. Refinement of the Navy plaque index to increase plaque scoring efficiency in gum line and interproximal tooth areas.
Measured: Initial reading, reading taken immediately following first brushing, 1-week, 3-weeks, and 6-weeks
Gingivitis Assessment
A Loe-Silness Gingival Index score from 0 to 3 will be assigned by the examining dentist to all scoreable surfaces of the maxillary and mandibular teeth using a dental light and dental mirror.
Measured: Initial reading, 1-week, 3-weeks, and 6-weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Aug 2024
- Study start26 Jul 2024
- Primary completion10 Sep 2024
- Study completion10 Sep 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Plaque, DentalStudies of the same condition, open and under way.
- More trials run by Colgate PalmoliveThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 84 participants (actual)
Sponsor and investigators
- Lead sponsor
- Colgate Palmolive
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- John Gallob, DMD, Principal investigator, Consumer Research Consulting, LLC.
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06565897
- Sponsor's protocol ID
- CRO-2024-04-MTB-FL-DR
- Status last verified
- Sep 2024
- First submitted
- 19 Aug 2024
- Last updated
- 18 Mar 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 18 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Clinical Investigation to Assess the Efficacy of Manual Toothbrushes in the Reduction of Established Plaque and Gingivitis: a 6-week Clinical Study
- ClinicalTrials.gov ID
- NCT06565897
- Acronym / sponsor ID
- CRO-2024-04-MTB-FL-DR
- Conditions
- Plaque, Dental, Gingivitis
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 84 participants (actual)
- Lead sponsor
- Colgate PalmoliveIndustry (pharma, biotech, devices)
- Study start
- 26 Jul 2024 (actual)
- Primary completion
- 10 Sep 2024 (actual)
- Study completion
- 10 Sep 2024 (actual)
- First posted
- 22 Aug 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Qualified subjects will be enrolled and randomized to one of the two study groups based on their initial Plaque and Gingivitis scores. Subjects will be instructed to use the products according to the instructions provided. Subjects will return to the dental office for evaluation after 1, 3, and 6, weeks of unsupervised product use at home. All subjects will be followed for adverse events throughout the study
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Test regimen | Experimental | Drug: Test regimenBrush with full ribbon toothpaste, 2x day / 2mins with paste \& toothbrush provided |
| Control regimen | Active comparator | Drug: Control regimenBrush with full ribbon toothpaste, 2x day / 2mins with paste \& toothbrush provided |
Who may qualify
- Ages
- 18 to 70 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- Signed Informed Consent Form.
- Male and female subjects aged 18-70 years, inclusive.
- Availability for the six-week duration of the clinical research study.
- Good general health based on the opinion of the study investigator
- Minimum of 20 permanent natural teeth (excluding third molars).
Key exclusion criteria (13 listed)
- Presence of orthodontic appliances.
- Presence of partial removable dentures.
- Tumor(s) of the soft or hard tissues of the oral cavity.
- Moderate and/or advanced periodontal disease, rampant caries, or any condition that the dental examiner considers exclusionary from the study.
- Five or more carious lesions requiring immediate restorative treatment.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Test regimentoothpaste \& manual toothbrush | Drug | Test regimen |
| Control regimentoothpaste \& manual toothbrush | Drug | Control regimen |
Primary outcome
Plaque assessment
Time frame: Initial reading, reading taken immediately following first brushing, 1-week, 3-weeks, and 6-weeks
The dentition will be disclosed with disclosing solution and plaque scored according to the Refined Navy Plaque Index. Refinement of the Navy plaque index to increase plaque scoring efficiency in gum line and interproximal tooth areas.
Gingivitis Assessment
Time frame: Initial reading, 1-week, 3-weeks, and 6-weeks
A Loe-Silness Gingival Index score from 0 to 3 will be assigned by the examining dentist to all scoreable surfaces of the maxillary and mandibular teeth using a dental light and dental mirror.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Mar 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
John Gallob, DMD principal investigator
Consumer Research Consulting, LLC.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Test regimen in people with Plaque, Dental and Gingivitis, run by Colgate Palmolive at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 18 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Plaque assessment (time frame: Initial reading, reading taken immediately following first brushing, 1-week, 3-weeks, and 6-weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Mar 2026.