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Humans may be able to grow new teeth within just 6 years. Japanese researchers are advancing a promising tooth-regrowing medicine into human trials. (www.popularmechanics.com)

submitted 1 month ago by [email protected] to c/[email protected]

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[–] [email protected] 2 points 1 month ago* (last edited 1 month ago)

Ah, thanks!

So the meat of this is actually the mouse models, looks like. Strains of mice with genetically missing teeth got them back.

They basically just juiced normal ferrets to see what would happen, and they grew an extra incisor as you can see in the images posted. I'm guessing developing genetically toothless ferrets wasn't in the scope of their funding. You can get all kinds of weird lab mice "off the shelf", though.