Don’t rinse your teeth after brushing. Here’s why.

Fluoride strengthens dental enamel, and toothpaste is probably your main fluoride source, especially if you don’t get fluoride in your tap water. Internal medicine physician, Harvard Medical School instructor and Ask a Doctor columnist Trisha Pasricha explains the benefits of fluoride. Subscribe to The Washington Post on YouTube: https://wapo.st/2QOdcqK

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Author: Washington Post
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News post in at: April 19, 2025, 6:00 am.

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