"Hydroxyapatite is natural. It is a type of calcium that makes up bones and teeth," says Lai. "Nano-hydroxyapatite relates to ...
The Healthy @Reader's Digest on MSN
We asked 4 dentists to name the best mouthwash—and they all said the same thing
While that minty burn sure seems like it's working, oral hygiene experts explain why that's not what you want in your rinse.
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