ELI5 – Why do baby teeth grow in relatively straight, but adult teeth grow in so crooked, requiring braces?

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ELI5 – Why do baby teeth grow in relatively straight, but adult teeth grow in so crooked, requiring braces?

In: Biology

Babies have less teeth than adults which leaves more room for them to grow in correctly. Once adult teeth start to grow in sometimes the additional molars make the front teeth crowd.

In my case, some of the baby teeth didn’t fall out and altered the position if some of the permanent teeth.