A Clinical Study to Assess the Gingivitis and Plaque Effects of Various Dentifrices

February 29, 2024 updated by: Procter and Gamble

A Three-Month Clinical Study to Assess the Gingivitis and Plaque Effects of Various Dentifrices

The primary objective of this study is to evaluate the effect four different dentifrices have on gingivitis after 12 weeks of product use. The secondary objectives are to assess the effect four dentifrices, have on plaque and oral microbiome composition.

Study Overview

Study Type

Interventional

Enrollment (Actual)

116

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • Whittier, California, United States, 90602
        • UHRG

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Be at least 18 years of age;
  • Provide written informed consent prior to participation and be given a signed copy of the informed consent form;
  • Be in general good health as determined by the Investigator based on a review of the health history/update for participation in the trial;
  • Have at least 16 gradable teeth;
  • Have mild to moderate gingivitis with at least 20 bleeding sites;
  • Agree to return for scheduled visits and follow the study procedures;
  • Agree to refrain from use of any non-study oral hygiene products for the duration of the study;
  • Agree to delay any elective dentistry, including dental prophylaxis, until the completion of the study;
  • Agree to refrain from any oral hygiene the morning of your visit
  • Agree to refrain from eating, drinking (except water), using tobacco, floss, use toothpicks, breath mints, or chew gum after performing your evening brushing.

Exclusion Criteria:

  • Having taken antibiotic, anti-inflammatory, or anti-coagulant medications within 4 weeks of the Baseline Visit;
  • Have any oral conditions that could interfere with study compliance and/or examination procedures, such as widespread caries, soft or hard tissue tumor of the oral cavity, or advanced periodontal disease;
  • Having had a dental prophylaxis within 2 weeks of plaque sampling visits;
  • Removable oral appliances;
  • Fixed facial or lingual orthodontic appliances;
  • Self-reported pregnancy or lactation;
  • Any diseases or condition that might interfere with the safe participation in the study; and
  • Inability to undergo study procedures.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Sham Comparator: 0.76% Sodium Monofluorophosphate Dentifrice
Whole mouth brushing with a toothpaste, twice daily for the duration of the study.
Active Comparator: Marketed 0.454% Stannous Fluoride Dentifrice
Whole mouth brushing with a toothpaste, twice daily for the duration of the study.
Active Comparator: 0.454% Stannous Fluoride Dentifrice
Whole mouth brushing with a toothpaste, twice daily for the duration of the study.
Active Comparator: Marketed 0.454% Stannous Fluoride plus Arginine Dentifrice
Whole mouth brushing with a toothpaste, twice daily for the duration of the study.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Löe-Silness Gingivitis Evaluation
Time Frame: 3 Months
Löe-Silness Gingivitis Evaluation is a validated assessment of gingival health looking at inflammation and bleeding based on a 4 point range 0 (normal gingiva) to 3 (severe inflammation).
3 Months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Löe-Silness Gingivitis Evaluation
Time Frame: Baseline
Löe-Silness Gingivitis Evaluation is a validated assessment of gingival health looking at inflammation and bleeding based on a 4 point range 0 (normal gingiva) to 3 (severe inflammation).
Baseline
Löe-Silness Gingivitis Evaluation
Time Frame: 1 Month
Löe-Silness Gingivitis Evaluation is a validated assessment of gingival health looking at inflammation and bleeding based on a 4 point range 0 (normal gingiva) to 3 (severe inflammation).
1 Month
Mean Turesky Modified Quigley-Hein Index
Time Frame: Baseline
The Turesky Modified Quigley-Hein Index was scored on six surfaces (distobuccal, midbuccal, mesiobuccal, distolingual, midlingual and mesiolingual) to assess plaque on all gradable teeth. Whole mouth average plaque scores were calculated for each subject and tooth surfaces by totaling the scores and dividing by the number of gradable sites examined. the scoring criteria is below; (0) No Plaque; (1) Separate flecks of plaque at the cervical margin; (2) A thin, continuous band of plaque (up to 1 mm) at the cervical margin; (3) A band of plaque wider than 1 mm, but covering less than one third of the side of the crown of the tooth; (4) Plaque covering at least one third, but less than two thirds of the side of the crown of the tooth; (5) Plaque covering two thirds or more of the side of the crown of the tooth.
Baseline
Mean Turesky Modified Quigley-Hein Index
Time Frame: 1 Month
The Turesky Modified Quigley-Hein Index was scored on six surfaces (distobuccal, midbuccal, mesiobuccal, distolingual, midlingual and mesiolingual) to assess plaque on all gradable teeth. Whole mouth average plaque scores were calculated for each subject and tooth surfaces by totaling the scores and dividing by the number of gradable sites examined. the scoring criteria is below; (0) No Plaque; (1) Separate flecks of plaque at the cervical margin; (2) A thin, continuous band of plaque (up to 1 mm) at the cervical margin; (3) A band of plaque wider than 1 mm, but covering less than one third of the side of the crown of the tooth; (4) Plaque covering at least one third, but less than two thirds of the side of the crown of the tooth; (5) Plaque covering two thirds or more of the side of the crown of the tooth.
1 Month
Mean Turesky Modified Quigley-Hein Index
Time Frame: 3 Months
The Turesky Modified Quigley-Hein Index was scored on six surfaces (distobuccal, midbuccal, mesiobuccal, distolingual, midlingual and mesiolingual) to assess plaque on all gradable teeth. Whole mouth average plaque scores were calculated for each subject and tooth surfaces by totaling the scores and dividing by the number of gradable sites examined. the scoring criteria is below; (0) No Plaque; (1) Separate flecks of plaque at the cervical margin; (2) A thin, continuous band of plaque (up to 1 mm) at the cervical margin; (3) A band of plaque wider than 1 mm, but covering less than one third of the side of the crown of the tooth; (4) Plaque covering at least one third, but less than two thirds of the side of the crown of the tooth; (5) Plaque covering two thirds or more of the side of the crown of the tooth.
3 Months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 2, 2023

Primary Completion (Actual)

December 10, 2023

Study Completion (Actual)

December 10, 2023

Study Registration Dates

First Submitted

November 14, 2023

First Submitted That Met QC Criteria

November 14, 2023

First Posted (Actual)

November 20, 2023

Study Record Updates

Last Update Posted (Estimated)

March 1, 2024

Last Update Submitted That Met QC Criteria

February 29, 2024

Last Verified

February 1, 2024

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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