eli5: Why can’t our bodies grow new teeth, even though it can grow bones?
In: Biology
Teeth trace their origins back to fish scales and not bone.
Bones are living tissue, because it is living it can be regrown.
Enamel is not living tissue. You can remineralize it to some degree, but it can’t be regrown once it has already been formed. Humans do not have further instruction on a cellular level to form new teeth past our adult teeth so no more are produced.
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