A Harvard-led team just successfully used low-powered lasers to activate stem cells and stimulate the growth of teeth in rats and human dental tissue in a lab. The results were published today in the journal Science Translational Medicine.
The ability to naturally regrow dental tissue could transform dentistry, making it possible to regrow teeth instead of replacing them with a substitute like porcelain. But even more amazingly, once it’s better understood, this same technique could potentially be used to heal wounds and regenerate bone, skin, and muscle.

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