Why do wisdom teeth come in so late?

Wisdom-teeth removal is a rite of passage for many people in their late teens and early 20s. But why don’t they come in during childhood with the rest of our permanent  teeth?

The answer comes down to child development. There’s not enough room in a child’s jaw for wisdom teeth to come in. But as a kid grows, their jaw grows too, and there’s more room for wisdom teeth to emerge, according to an October 2021 study in the journal Science Advances

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