CompletedNot Applicable

Efficacy of Two Sonic Toothbrushes in Reducing Extrinsic Tooth Stain

China129 participantsStarted 2022-03-05

Plain-language summary

The objective of the present study was to compare the effects of reduction of extrinsic stains between 2 commercially available Oclean sonic toothbrushes in comparison with an Oral-B manual toothbrush.

Who can participate

Age range

18 Years – 70 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

The inclusion criteria were: 1) aged 18-70 years; 2) good general health; 3) ability to attend all scheduled visits over the 8-week study period; 4) possession of more than 20 natural permanent teeth, excluding third molars, which are free of crowns or extensive restorative materials; 5) at least 12 anterior teeth suitable for scoring (i.e., free of crowns, veneers, large restorations, trauma, or non-vital pulp); 6) a whole-mouth mean Lobene stain composite score greater than 1. Exclusion criteria included: 1) severe oral or systemic diseases; 2) advanced periodontal diseases; 3) pregnancy or lactation; 4) dental fluorosis or tetracycline staining; 5) orthodontic appliances or partial removable dentures; 6) participation in other clinical trials; 7) professional prophylaxis within 3 months or tooth whitening within 6 months; and 8) known allergy to study products.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Lobene Stain Index of Stain Intensity Scores 4 Weeks After Toothbrush Use

Timeframe: 4 weeks after toothbrush use

Lobene Stain Index of Stain Area Scores 4 Weeks After Toothbrush Use

Timeframe: 4 weeks after toothbrush use

Lobene Stain Index of Stain Composite Scores 4 Weeks After Toothbrush Use

Timeframe: 4 weeks after toothbrush use

Lobene Stain Index of Stain Intensity Scores 8 Weeks After Toothbrush Use

Timeframe: 8 weeks after toothbrush use

Lobene Stain Index of Stain Area Scores 8 Weeks After Toothbrush Use

Timeframe: 8 weeks after toothbrush use

Lobene Stain Index of Stain Composite Scores 8 Weeks After Toothbrush Use

Timeframe: 8 weeks after toothbrush use

Trial details

NCT IDNCT05202093

SponsorSun Yat-sen University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2022-07-15

Results submitted2025-11-20

View on ClinicalTrials.gov More Tooth Bleaching trials

Who can participate

Age range

18 Years – 70 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

What they're measuring

Lobene Stain Index of Stain Intensity Scores 4 Weeks After Toothbrush Use

Timeframe: 4 weeks after toothbrush use

Lobene Stain Index of Stain Area Scores 4 Weeks After Toothbrush Use

Timeframe: 4 weeks after toothbrush use

Lobene Stain Index of Stain Composite Scores 4 Weeks After Toothbrush Use

Timeframe: 4 weeks after toothbrush use

Lobene Stain Index of Stain Intensity Scores 8 Weeks After Toothbrush Use

Timeframe: 8 weeks after toothbrush use

Lobene Stain Index of Stain Area Scores 8 Weeks After Toothbrush Use

Timeframe: 8 weeks after toothbrush use

Lobene Stain Index of Stain Composite Scores 8 Weeks After Toothbrush Use

Timeframe: 8 weeks after toothbrush use