Dental PlaquePhase 3NCT06240481
Clinical Research Study to Assess the Efficacy of Two Brushing Regimens
A Phase 3 study testing Test Regimen in people with Dental Plaque and Gingivitis, run by Colgate Palmolive at 1 site in Spain.
Trial summary
The objective of this twelve-week clinical research study is to assess the efficacy of two brushing regimens: 1) toothpaste with mouthwash containing sodium fluoride/zinc and manual toothbrush as compared to 2) regular fluoride toothpaste and manual toothbrush in the reduction of dental plaque and aid of gum problems. Read more about this study
- Who is it for?
- Ages 18 to 70 yearsHealthy volunteers can take part
- Conditions the study is for
- Dental Plaque, Gingivitis
- What is being tested?
- Test Regimen
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 90 participants
- Where
- 1 siteSpain
- Study dates
- 23 Sep 2024to 21 Dec 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
- Signed Informed Consent Form.
- Male and female subjects aged 18-70 years, inclusive.
- Availability for the twelve-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 plaque index of at least 1.5 as determined by the use of the Quigley and Hein Plaque Index (Turesky Modification)
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. -Participation in any other clinical study or test panel within the one month prior to entry into the study.
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- 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.
About this study
Official title: Study to Assess the Efficacy of Two Brushing Regimens in the Reduction of Dental Plaque and Aid of Gum Problems
The objective of this twelve-week clinical research study is to assess the efficacy of two brushing regimens: 1) toothpaste with mouthwash containing sodium fluoride/zinc and manual toothbrush as compared to 2) regular fluoride toothpaste and manual toothbrush in the reduction of dental plaque and aid of gum problems.
- Conditions
- Dental Plaque, Gingivitis
- Being tested
- Test Regimen, Control Regimen
- Keywords
- plaque, gingivitis, Loe and Silness Gingival Index, Quigley and Hein Plaque Index
- Medical subject headings
- Dental Plaque, Gingivitis, Plaque, Amyloid
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Test RegimenDrug
toothpaste \& mouthwash
Control RegimenDrug
toothpaste
| Study group | Role | What they receive |
|---|---|---|
| Group I | Active comparator | Meridol regimen comprises an amine base compound, zinc lactate and NaF (AZF) toothpaste and mouthwash, brush 2x day/2min and swish 15ml/30 secs after brushing Receives: Drug: Test Regimen; Drug: Control Regimen |
| Group II | Placebo comparator | Regular fluoride toothpaste, Brush 2 x day 2 mins Receives: Drug: Test Regimen; Drug: Control Regimen |
What is being measured
The primary outcome is the main question the study is designed to answer.
Quigley and Hein Plaque Index
reductions in dental plaque
Measured: Baseline, 3 weeks, 6 week & 12 weeks
Loe and Silness Gingival Index
assessment of gum problems (gingival scores)
Measured: Baseline, 3 weeks, 6 week & 12 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Feb 2024
- Study start23 Sep 2024
- Primary completion21 Dec 2024
- Study completion21 Dec 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Dental PlaqueStudies 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
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 90 participants (actual)
Sponsor and investigators
- Lead sponsor
- Colgate Palmolive
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Augusto R Elias-Boneta, DMD, MSD, Principal investigator, Clinica Dental Dr. Sitges Carretera de Cardona
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06240481
- Sponsor's protocol ID
- CRO-2024-02-PG-MRG-SP-BGS
- Status last verified
- Jan 2025
- First submitted
- 26 Jan 2024
- Last updated
- 6 Feb 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 6 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Study to Assess the Efficacy of Two Brushing Regimens in the Reduction of Dental Plaque and Aid of Gum Problems
- ClinicalTrials.gov ID
- NCT06240481
- Acronym / sponsor ID
- CRO-2024-02-PG-MRG-SP-BGS
- Conditions
- Dental Plaque, Gingivitis
- Keywords
- plaque, gingivitis, Loe and Silness Gingival Index, Quigley and Hein Plaque Index
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 90 participants (actual)
- Lead sponsor
- Colgate PalmoliveIndustry (pharma, biotech, devices)
- Study start
- 23 Sep 2024 (actual)
- Primary completion
- 21 Dec 2024 (actual)
- Study completion
- 21 Dec 2024 (actual)
- First posted
- 5 Feb 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.
The objective of this twelve-week clinical research study is to assess the efficacy of two brushing regimens: 1) toothpaste with mouthwash containing sodium fluoride/zinc and manual toothbrush as compared to 2) regular fluoride toothpaste and manual toothbrush in the reduction of dental plaque and aid of gum problems.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Group I | Active comparator | Drug: Test Regimen, Drug: Control RegimenMeridol regimen comprises an amine base compound, zinc lactate and NaF (AZF) toothpaste and mouthwash, brush 2x day/2min and swish 15ml/30 secs after brushing |
| Group II | Placebo comparator | Drug: Test Regimen, Drug: Control RegimenRegular fluoride toothpaste, Brush 2 x day 2 mins |
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 twelve-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 (11 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 \& mouthwash | Drug | Group I, Group II |
| Control Regimentoothpaste | Drug | Group I, Group II |
Primary outcome
Quigley and Hein Plaque Index
Time frame: Baseline, 3 weeks, 6 week & 12 weeks
reductions in dental plaque
Loe and Silness Gingival Index
Time frame: Baseline, 3 weeks, 6 week & 12 weeks
assessment of gum problems (gingival scores)
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 6 Feb 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.
Augusto R Elias-Boneta, DMD, MSD principal investigator
Clinica Dental Dr. Sitges Carretera de Cardona
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 Test Regimen in people with Dental Plaque and Gingivitis, run by Colgate Palmolive at 1 site in Spain.
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 11 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 6 Feb 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 Spain. 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. Some participants in this study may receive a placebo. 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?
Quigley and Hein Plaque Index (time frame: Baseline, 3 weeks, 6 week & 12 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 6 Feb 2026.