Regrowing Teeth with Lasers

A new method of regrowing teeth using lasers offers a ground-breaking treatment that could have other applications. The technique, is significant in that it offers a degree of precision when manipulating stem cells something that has escaped other researchers. Using low-powered lasers, it was able to coax stem cells in the body to regenerate dentin, with the results in both human and animal models proving optimistic.
http://www.seas.harvard.edu/news/2014/05/researchers-use-light-to-coax-stem-cells-to-repair-teeth

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