Our bones heal naturally when broken, at least to some extent, so why is it not the same with teeth, which are arguably more useful?
Even the tooth regrowing drug developed recently will be first tested on humans with congenitally missing tooth, not those who lost their teeth later in life, at least from what I understand, which means there’s no *re*growing anything.
Will it ever be possible to fully regrow a tooth and have it be just like the one you lost?
In: Biology
regrowing teeth is not required to survive and pass along your genes to the next generation. You can lose a couple and get by just fine.
a broken bone would be permanently crippling. So earlier generations that could repair bones survived and passed along their gene to their following generations. So people can repair their bones, maybe not perfectly (my collarbone can tell you that), but it repairs enough that you can survive.
pass the the question through the question question of survival. You can loose a couple teeth and still survive to tomorrow (or next week or next year). A broke bone would be permanently disabling.
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