A large comparative study of primate teeth shows that grooves once linked to ancient human tooth-picking can form naturally, while some common modern dental problems appear uniquely human.
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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