NCT07306026

Evaluation of Toothbrush Bristles

Evaluation of Toothbrush Bristles in Reduction of Plaque, Inflammation, Bleeding, and Abrasion: A Comparative Study of Tapered vs. End-Rounded Bristles

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 70 (estimated)
• Sponsor: State University of New York at Buffalo · Academic / Other
• Sex: All
• Age: 18 Years – 70 Years
• Healthy volunteers: Accepted

Summary

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.

Conditions

• Gingivitis and Periodontal Diseases

Interventions

Type	Name	Description
OTHER	Toothbrush with tapered bristles	Toothbrush with tapered bristles
OTHER	Toothbrush with end-rounded bristles	Toothbrush with end-rounded bristles

Timeline

• Start date: 2025-10-21
• Primary completion: 2026-06-30
• Completion: 2026-08-31
• First posted: 2025-12-26
• Last updated: 2026-03-09

Locations

1 site across 1 country: United States