Ancient Romans Used Urine As Mouthwash

Roman dentists and hygienists believed that the ammonia in stale urine had disinfectant and whitening properties. Despite its modern revulsion, this practice was a common and accepted form of oral hygiene in the ancient world.

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https://www.history.com/news/ancient-roman-hygiene-facts

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Published: March 25, 2026
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History Weird Culture Ancient Rome Hygiene Urine History Facts Dental Care Roman Culture

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