Which tongue cleaner works best? a fluorescence showdown
NCT ID NCT07767721
First seen Aug 17, 2026 · Last updated Aug 18, 2026 · Updated 1 time
Summary
This trial asks whether a bristled tongue brush, a plastic scraper, or a metal scraper is more effective at removing the biofilm that coats the tongue. Thirty healthy adults aged 18 to 25 will use each device daily for two weeks, with a week off in between, while researchers measure biofilm using fluorescence imaging and a visual coating index. The study also tracks saliva pH and how acceptable each device feels, including any gag reflex.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Tongue cleaning devices: bristled tongue brush, plastic tongue scraper, and metal tongue scraper
- What this could lead to
- If one device proves clearly better at removing tongue biofilm, it could point toward a preferred tool for improving oral hygiene and reducing bad breath.
- What could go wrong
- This is a small, early crossover study in healthy young adults, so results may not apply to everyone. Differences between devices might be minor, and the trial does not test long-term health outcomes.
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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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Istanbul Kent University, Faculty of Dentistry
Istanbul, Turkey (Türkiye)
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