Can a gentler air-polishing method keep teeth stain-free longer?
NCT ID NCT07799558
First seen Sep 02, 2026 · Last updated Sep 03, 2026 · Updated 1 time
Summary
This trial tests two professional dental cleaning methods in adults with visible tooth stains. Each participant gets guided biofilm therapy on one side of the mouth and conventional polishing on the other. Researchers measure tooth color right after cleaning, then at one and two months, to see which method keeps stains away longer. They also track patient discomfort and how long each procedure takes.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Guided Biofilm Therapy (air-polishing with erythritol powder) compared with conventional polishing (prophylaxis brush and paste)
- What this could lead to
- If guided biofilm therapy works better, it could become a preferred dental cleaning method that keeps teeth stain-free longer with less discomfort.
- What could go wrong
- This is a small, early trial with only 34 participants, so results may not apply to everyone. The therapy may not outperform conventional polishing, and individual responses can vary.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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34 people
The number who actually took part.
- Started
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Jan 2026
- Finished
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Jun 2026
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age over 18 years. * Willingness to participate in the study and provision of written informed consent. * Good general health with no systemic disease. * Clinical presence of extrinsic staining on tooth surfaces at a level warranting professional polishing. * Right-handed tooth brushing. * No professional dental cleaning within the previous 6 months. Exclusion Criteria: * Age under 18 years. * Diagnosis of periodontitis. * Current smoking. * Antibiotic use within the previous 3 months. * Presence of acute periodontal disease. * Allergy to polishing powders, specifically erythritol. * Presence of a communicable disease. * Teeth to be measured with restorations, caries, excessive wear, or structural defects that could affect measurement. * Active orthodontic treatment. * Developmental or structural anomalies affecting enamel and potentially increasing susceptibility to extrinsic staining, including hypomineralization, amelogenesis imperfecta, or dentinogenesis imperfecta. * Severe dental crowding preventing standardized measurements.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Atatürk University
Erzurum, Erzurum, 25080, Turkey (Türkiye)
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