Plaque, DentalPhase 3NCT06430060
Investigation of Colgate Dual Zinc Toothpaste as Compared to Colgate Cavity Protection Toothpaste in Controlling Plaque and Gingivitis
A Phase 3 study testing zinc containing toothpaste and MFP Fluoride toothpaste in people with Plaque, Dental and Gingivitis, run by Colgate Palmolive at 1 site in China.
Trial summary
Qualified subjects will be enrolled and randomized to either one of the two study groups described above 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?
- zinc containing toothpaste and MFP Fluoride toothpaste
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 86 participants
- Where
- 1 siteChina
- Study dates
- 15 Apr 2024to 25 Aug 2024
- Phase
- Phase 3
- 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
- Subjects, ages 18-70, inclusive.
- Availability for the three-month duration of the clinical research study.
- Good general health.
- Minimum of 20 uncrowned 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 plaque index of at least 1.5 as determined by the use of the Quigley and Hein Plaque Index (Turesky Modification).
- Signed Informed Consent Form
Who cannot join
- Presence of orthodontic bands.
- Presence of partial removable dentures.
- Tumor(s) of the soft or hard tissues of the oral cavity.
- Advanced periodontal disease (purulent exudate, tooth mobility, and/or extensive loss of periodontal attachment or alveolar bone).
- Five or more carious lesions requiring immediate restorative treatment.
- Antibiotic use any time during the one month 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 which prohibits eating or drinking for periods up to 4 hours.
- History of alcohol or drug abuse.
- Pregnant or lactating subjects
Trial locations and contacts
1 site in 1 country.
About this study
Official title: The Clinical Investigation of Colgate Dual Zinc Toothpaste as Compared to Colgate Cavity Protection Toothpaste in Controlling Established Plaque and Gingivitis (A Three Month Clinical Study)
Qualified subjects will be enrolled and randomized to either one of the two study groups described above 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 three months of product use. All subjects will be followed for adverse events throughout the study.
- Conditions
- Plaque, Dental, Gingivitis
- Being tested
- zinc containing toothpaste, MFP Fluoride toothpaste
- 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.
zinc containing toothpasteDrug
Toothpaste
MFP Fluoride toothpasteDrug
toothpaste
| Study group | Role | What they receive |
|---|---|---|
| Colgate Dual Zinc Toothpaste | Experimental | toothpaste Receives: Drug: zinc containing toothpaste |
| Colgate Cavity Protection Toothpaste | Active comparator | toothpaste Receives: Drug: MFP Fluoride toothpaste |
What is being measured
The primary outcome is the main question the study is designed to answer.
Loe-Silness Gingival Index score
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. A whole mouth mean score for each subject will be determined by adding the values given by the examining dentist to each scoreable surface and dividing that number by the total number of surfaces scored.
Measured: baseline, 2 week, 6 week, 3 month
Quigley-Hein Plaque Index score
A Quigley-Hein Plaque Index score of 0 to 5 will be assigned to all scoreable disclosed surfaces of the maxillary and mandibular teeth using a dental light and dental mirror. A whole mouth score for each subject will be determined by adding the values given by the dental examiner to each scoreable surface and dividing that number by the total number of surfaces scored.
Measured: baseline, 2 week, 6 week, 3 month
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 May 2024
- Study start15 Apr 2024
- Primary completion25 Aug 2024
- Study completion25 Aug 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 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 86 participants (actual)
Sponsor and investigators
- Lead sponsor
- Colgate Palmolive
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Deyu Hu, DDS, MS, Principal investigator, West China Dental Institute of Chengdu
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06430060
- Sponsor's protocol ID
- CRO-2024-03-GIN-DZN-CN-YPZ
- Status last verified
- Mar 2026
- First submitted
- 21 May 2024
- Last updated
- 19 Mar 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 19 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Clinical Investigation of Colgate Dual Zinc Toothpaste as Compared to Colgate Cavity Protection Toothpaste in Controlling Established Plaque and Gingivitis (A Three Month Clinical Study)
- ClinicalTrials.gov ID
- NCT06430060
- Acronym / sponsor ID
- CRO-2024-03-GIN-DZN-CN-YPZ
- Conditions
- Plaque, Dental, Gingivitis
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 86 participants (actual)
- Lead sponsor
- Colgate PalmoliveIndustry (pharma, biotech, devices)
- Study start
- 15 Apr 2024 (actual)
- Primary completion
- 25 Aug 2024 (actual)
- Study completion
- 25 Aug 2024 (actual)
- First posted
- 28 May 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 either one of the two study groups described above 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 three months of product use. 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 |
|---|---|---|
| Colgate Dual Zinc Toothpaste | Experimental | Drug: zinc containing toothpastetoothpaste |
| Colgate Cavity Protection Toothpaste | Active comparator | Drug: MFP Fluoride toothpastetoothpaste |
Who may qualify
- Ages
- 18 to 70 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- Subjects, ages 18-70, inclusive.
- Availability for the three-month duration of the clinical research study.
- Good general health.
- Minimum of 20 uncrowned 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.
Key exclusion criteria (13 listed)
- Presence of orthodontic bands.
- Presence of partial removable dentures.
- Tumor(s) of the soft or hard tissues of the oral cavity.
- Advanced periodontal disease (purulent exudate, tooth mobility, and/or extensive loss of periodontal attachment or alveolar bone).
- 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 |
|---|---|---|
| zinc containing toothpasteToothpaste | Drug | Colgate Dual Zinc Toothpaste |
| MFP Fluoride toothpastetoothpaste | Drug | Colgate Cavity Protection Toothpaste |
Primary outcome
Loe-Silness Gingival Index score
Time frame: baseline, 2 week, 6 week, 3 month
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. A whole mouth mean score for each subject will be determined by adding the values given by the examining dentist to each scoreable surface and dividing that number by the total number of surfaces scored.
Quigley-Hein Plaque Index score
Time frame: baseline, 2 week, 6 week, 3 month
A Quigley-Hein Plaque Index score of 0 to 5 will be assigned to all scoreable disclosed surfaces of the maxillary and mandibular teeth using a dental light and dental mirror. A whole mouth score for each subject will be determined by adding the values given by the dental examiner to each scoreable surface and dividing that number by the total number of surfaces scored.
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 19 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.
Deyu Hu, DDS, MS principal investigator
West China Dental Institute of Chengdu
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing zinc containing toothpaste and MFP Fluoride toothpaste in people with Plaque, Dental and Gingivitis, run by Colgate Palmolive at 1 site in China.
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 19 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 China. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
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?
Loe-Silness Gingival Index score (time frame: baseline, 2 week, 6 week, 3 month). 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 19 Mar 2026.