Who knew humans had a third set of teeth?
Most people are born with 20 baby teeth and 32 permanent teeth. But about 1% of people have a condition called hyperdontia, meaning they have extra teeth called supernumerary teeth.
These supernumerary teeth may be baby teeth or permanent teeth, and there may be one or more of them. However, according to Katsu Takahashi, head of the…
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