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Showing 1–23 of 23 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: dental floss Clear all
Completed Phase 4 Interventional Accepts healthy volunteers

A Study of Virtually Supervised Mouth Rinses and Flossing

NCT05600231
View directory record Official record
Conditions
Healthy
Interventions
LISTERINE COOL MINT Antiseptic Mouthwash, LISTERINE COOL MINT ZERO Alcohol Mouthwash, Reach Unflavored Waxed Dental Floss, Colgate Cavity Protection Toothpaste
Other
Lead sponsor
Johnson & Johnson Consumer Inc. (J&JCI)
Industry
Eligibility
18 Years and older
Enrollment
284 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Fort Wayne, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 17, 2023 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Oral Hygiene and Maternity Outcomes Multicenter Study (OHMOM)

NCT01549587
View directory record Official record
Conditions
Gingivitis, Pregnancy
Interventions
0.243% sodium fluoride, toothbrush, dental floss, 0.454% stannous fluoride, 0.07% Cetylpyridinium chloride
Drug · Device
Lead sponsor
Procter and Gamble
Industry
Eligibility
18 Years and older · Female only
Enrollment
746 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
2
States / cities
Birmingham, Alabama • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 20, 2023 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of the Efficacy and Safety of a Loop Stretchable Dental Floss

NCT06515483
View directory record Official record
Conditions
Gingivitis, Supragingival Plaque
Interventions
Brushing and Flossing of teeth, Brushing Only
Device · Other
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 65 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 12, 2025 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional

Dental Plaque Removal Study

NCT01559987
View directory record Official record
Conditions
Gingivitis, Gum Disease
Interventions
Manual Toothbrush only, MTB + Waterpik Ultra Water Flosser 'High', MTB + Floss (MTB+Floss)
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 75 Years
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 30, 2018 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

University of New Mexico Dental Hygiene

NCT03876353
View directory record Official record
Conditions
Oral Plaque Biofilm
Interventions
Floss
Other
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Mar 14, 2019 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Phase 4 Interventional Results available

Baseline Oral Health Study: UnCoVer the Connections to General Health

NCT04954313
View directory record Official record
Conditions
Cardiovascular Diseases, Diabetes Type 2
Interventions
Subgingival chlorhexidine irrigation, Dental Supplies, Periodonal Treatment
Drug · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
786 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional

Functional Chewing Gum in Reduction of Gingival Inflammation

NCT03237624
View directory record Official record
Conditions
Gingivitis
Interventions
Functional Chitosan Chewing Gum, Control Chewing Gum, Oral hygiene measures
Device · Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional

The Effect of Non-Surgical Periodontal Therapy on Glycemic Control and Bacterial Levels in a Mexican-American Population With Type 2 Diabetes

NCT01128374
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Periodontal Disease
Interventions
Periodontal Scaling and root planing
Procedure
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 14, 2013 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional

Evaluating the Efficacy of a Gum Health Formulation on Teeth Whitening in Patients With Gingivitis and Periodontitis

NCT02906982
View directory record Official record
Conditions
Tooth Discoloration, Periodontal Diseases
Interventions
Gum health formulation in intra-oral device, Gum health formulation on toothbrush
Other
Lead sponsor
Glo Science, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 19, 2016 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Controlled Clinical Study to Determine the Gingivitis Benefit of Flossing

NCT00855933
View directory record Official record
Conditions
Gingivitis
Interventions
Experimental Floss
Device
Lead sponsor
Procter and Gamble
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Feb 7, 2013 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

A Twelve Week Study of Supervised Mouth Rinse and Flossing

NCT04696536
View directory record Official record
Conditions
Healthy
Interventions
Colgate Cavity Protection Toothpaste, American Dental Association (ADA) Referenced Toothbrush, 5% Hydroalcohol Mouth Rinse, REACH Dental Floss, Alcohol-containing Essential Oil (AEO) Mouth Rinse (Listerine Cool Mint, marketed)
Other
Lead sponsor
Johnson & Johnson Consumer Inc. (J&JCI)
Industry
Eligibility
18 Years and older
Enrollment
149 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Fort Wayne, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 27, 2021 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Correlation Between Oral Health and Systemic Inflammation (COHESION)

NCT03641989
View directory record Official record
Conditions
Inflammation, Periodontal Disease, Gingivitis
Interventions
Plaque disclosing toothpaste, Non-plaque disclosing toothpaste
Other
Lead sponsor
Marshfield Clinic Research Foundation
Other
Eligibility
21 Years to 84 Years
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Marshfield, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 19, 2020 · Synced Sep 5, 2026, 3:30 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Study to Evaluate Associations Between Gingivitis and Pregnancy Outcomes

NCT00641901
View directory record Official record
Conditions
Pregnancy-associated Gingivitis
Interventions
counseling
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
16 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Feb 28, 2013 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Comparative Efficacy of Floss and Essential Oil/CPC+Zn Mouthwashes in Reducing Dental Plaque and Gingivitis

NCT07029438
View directory record Official record
Conditions
Dental Plaque, Gingivitis
Interventions
Mouthwash, Floss, Toothbrush, Toothpaste
Drug · Device
Lead sponsor
Colgate Palmolive
Industry
Eligibility
18 Years and older
Enrollment
228 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Fort Wayne, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 29, 2025 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional Results available

Promoting Oral Health Among Smokers Randomized Trial

NCT02347124
View directory record Official record
Conditions
Oral Disease, Smoking
Interventions
Usual Care Control, Enhanced Intervention
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
718 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 7, 2019 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

A Twelve Week Study of Virtually Supervised Mouth Rinse and Flossing

NCT04750005
View directory record Official record
Conditions
Healthy
Interventions
Listerine Cool Mint, Colgate Cavity Protection Toothpaste, Reach Unflavored Waxed Dental Floss, American Dental Association (ADA) Ref Toothbrush
Other
Lead sponsor
Johnson & Johnson Consumer Inc. (J&JCI)
Industry
Eligibility
18 Years to 60 Years
Enrollment
209 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Fort Wayne, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 15, 2022 · Synced Sep 5, 2026, 3:30 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Reducing Risk for Infective Endocarditis

NCT05721781
View directory record Official record
Conditions
Bacteremia, Infective Endocarditis
Interventions
Oral Hygiene instruction, Dental Cleaning
Behavioral · Procedure
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
320 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
6
States / cities
Boston, Massachusetts • Ann Arbor, Michigan • Newark, New Jersey + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional Results available

Curved Soft-Picks on Plaque Accumulation on Patients With Gingivitis

NCT02883244
View directory record Official record
Conditions
Gingivitis
Interventions
Soft-Picks Advanced, Floss
Device
Lead sponsor
Sunstar Americas
Industry
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 10, 2018 · Synced Sep 5, 2026, 3:30 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Extending Dental Care to Nursing Home Residents to Reduce Mouth Infections and Incidence of Pneumonia and Improve Diabetic Glucose Control

NCT06890676
View directory record Official record
Conditions
Periodontitis, Gingivitis, Periodontal Disease, Periodontal Infections, Oral Infections, Periapical Infections, Pneumonia, Diabetes
Interventions
Comprehensive Oral Evaluation, Intraoral Complete Radiographic Series, • Teledentistry-synchronous and asynchronous, Periodontal Therapy, Periodontal Maintenance Procedure, Application of Caries Arresting Medicament, Oral Hygiene Assistance, Referral for Treatment of Acute Oral Infection
Other · Procedure
Lead sponsor
Missouri Department of Health and Senior Services
Other
Eligibility
60 Years to 100 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Jefferson City, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 25, 2025 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Efficacy and Safety Study of Interproximal Cleaning Modalities on Oral Health

NCT02187016
View directory record Official record
Conditions
Gingivitis
Interventions
AirFloss + BreathRx, AirFloss + Listerine, Dental Floss, Manual Toothbrush
Device
Lead sponsor
Philips Oral Healthcare
Industry
Eligibility
18 Years to 65 Years
Enrollment
290 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Mar 7, 2016 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional Results available

Oral Hygiene in Assisted Living

NCT03892200
View directory record Official record
Conditions
Aging, Long-Term Care
Interventions
Aim2 - Daily Mouth Care, Aim3 - Daily Mouth Care
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
1,405 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional

Minimizing Pathologic Aspiration in Patients Undergoing Esophageal and Lung Resections for Cancer

NCT04251312
View directory record Official record
Conditions
Esophageal Cancer, Lung Cancer
Interventions
Oral Hygiene Education and Oral Hygiene Packets
Other
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Jun 22, 2022 · Synced Sep 5, 2026, 3:30 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Instructed Dental Flossing on Interdental Gingival Bleeding: A Randomized Controlled Clinical Trial

NCT04218994
View directory record Official record
Conditions
Gingival Inflammation
Interventions
Flossing technique
Other
Lead sponsor
Tufts University
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 5, 2020 · Synced Sep 5, 2026, 3:30 PM EDT