Ancient Romans used urine to whiten their teeth
Ancient Romans ingeniously used urine for teeth whitening, leveraging its ammonia content for surprisingly effective results long before modern dentistry existed.
Ancient Romans had a surprising dental secret: they used urine to whiten their teeth. This resourceful practice, documented by Pliny the Elder, relied on ammonia produced by bacteria in urine. Ammonia acted as a mild abrasive and disinfectant, effectively removing stains and killing bacteria, making teeth appear whiter by ancient standards.
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