Mouthwash may harm good bacteria, new study warns

NCT ID NCT07356271

First seen Jan 21, 2026 · Last updated May 24, 2026 · Updated 16 times

Summary

This study looks at how everyday mouthwashes change the natural balance of bacteria in your mouth and whether that affects your heart health. Researchers will test several over-the-counter mouthwashes in 200 adults, some with gum disease and some without. The goal is to find out which mouthwashes are safe and effective without upsetting the mouth's healthy microbiome.

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Contacts and locations

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Conditions

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