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Hard projections in the mouths of vertebrates used mainly to mechanically digest food. Teeth can also be used for the purposes of defense or obtaining meals, especially in the case of hunting.

6 votes
3 answers
11k views

Why do we have nerves in our teeth?

Toothache is a useful signal to us as we can visit the dentist who can try to fix any problems with our teeth. But what is the natural biological role of toothache? …
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