Evaluation of Toothbrush Bristles

Recruiting now · Not applicable

Conditions studied: Gingivitis and Periodontal Diseases

In brief

The goal of this randomized clinical trial is to investigate two different types of toothbrush bristles. The main questions it aims to answer are the effects of two different bristle types on: * how much plaque is on the teeth * how deep the space is between gums and teeth * how much gum and bone are attached to the teeth * whether the gums bleed when checked * if the gums get scratched or irritated Researchers will compare toothbrushes with tapered bristles to those with regular round bristles. Participants will be randomly assigned toothbrush A or B to use at home during the study.

Key facts

Study ID

NCT07306026

Run by

State University of New York at Buffalo

People needed

70

Starts

2025-10-21

Expected to finish

2026-08-31

Last updated by the study team

2026-03-09

Who can join

Age: 18 and older, up to 70. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Must have read, understood and signed an informed consent prior to being entered into the study.
• Must be 18 to 70 years of age, male or female.
• Have at least 20 natural or restored teeth, not including implants.
• Must have average Plaque Index of greater than 2 at screening.
• Must have more than 20% of pockets with bleeding on probing at screening.
• Agree not to have a dental prophylaxis or any other elective, non-emergency dental procedures any time during the study.
• Agree to refrain from regular oral hygiene regimen for 24 hours and eating for 4 hours before the appointment in the study.
• Agree to abstain from the use of any dental products other than those provided in the study.
• Agree to comply with the conditions and schedule of the study.

You may not qualify if…

• Physical limitations or restrictions that might preclude normal tooth brushing.
• Evidence of gross oral pathology
• Periodontal probing pocket depths (PPD) ≥ 5mm.
• Evidence of major soft tissue lesions or trauma at the baseline visit as determined by the examiner.
• Chronic disease with concomitant oral manifestations
• Subjects who are currently undergoing, or require, extensive dental work, orthodontic treatment or periodontal surgery, or orthodontic treatment in the preceding 3 months
• Currently using bleaching trays
• Eating disorders
• Recent history of substance abuse
• Smoking >10 cigarettes/day
• Participation in other clinical studies within 14 days of screening
• Pregnancy

Where it is running

• SUNY Buffalo School of Dental Medicine — Buffalo, New York, United States (enrolling)

Full record on ClinicalTrials.gov

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