Many animals—sharks and manatees, for instance—can regrow their teeth throughout their lives. Humans aren't so fortunate, but scientists may be about to change that. Watch the video below to find out how.
Could Humans Ever Regrow Teeth?
Fillings + stem cells = genius.
What Are Stem Cells?
Stem cells are all over science news. Here's why.
10 Things You Didn't Know About Teeth
Ever heard of "Mountain Dew mouth"?
Key Facts In This Video
Dolphin's only grow one set of teeth and you can age them by counting their rings. 00:41
Cheese prevents tooth decay. 01:17
Babies can be born with teeth. 01:45
Do Sharks Clean Their Teeth?
They don't have to. Find out why.
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