Can probiotics or zinc mouthwash beat bad breath in braces?
NCT ID NCT07693972
First seen Jul 09, 2026 · Last updated Jul 10, 2026 · Updated 1 time
Summary
This study tests two approaches to reduce bad breath and plaque buildup in people with fixed braces: probiotic lozenges containing a beneficial bacteria, and a zinc chlorhexidine mouthwash. Participants are healthy individuals with braces who do not smoke or take medications that affect saliva. The trial measures plaque levels and breath odor to see which method works better.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Probiotic (L. brevis CD2 lozenges) and zinc chlorhexidine mouthwash
- What this could lead to
- If effective, these treatments could offer a simple way to manage bad breath and plaque buildup for people with braces.
- What could go wrong
- This is a small study with only 60 participants, and results may not apply to everyone. The treatments may not work better than standard care.
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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
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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College of Dentistry
RECRUITINGBaghdad, Alkargh, 10001, Iraq
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact
Contact Email: •••••@•••••
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