Mouthwash for bad breath study
Treatments studied
Part of Mouth & dental clinical trials.
This study tests if two special mouthwashes, chlorine dioxide and chlorhexidine, can reduce bad breath. You'd be asked to use one of these rinses and have your breath checked.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You have noticeable bad breath (scored by a smell test).
- You have at least 20 natural teeth (not dentures).
- You can stop using scented mouthwash for 8 hours, stop eating for 4 hours, and stop drinking for 2 hours before the test.
- On test day, you must not drink alcohol or caffeine, wear perfume, or eat strong-smelling foods like garlic.
- You do not smoke, vape, or use any tobacco products.
- You haven't taken antibiotics in the last month and do not have a serious infection like hepatitis or HIV.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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