In this section : Science

May 28, 2014 9:02 PM

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In this section : Science

With a simple, low-power laser, Harvard University scientists have triggered naturally-occurring dental stem cells to regrow teeth in rats. The work is a step toward developing a new form of dental therapy that could be used in people, but also represents a broader shift in thinking about how to trigger the body’s natural regenerative capacity.

In the new research, described in the journal Science Translational Medicine on Wednesday, scientists injured two rat molars, side by side, and then administered the laser treatment to only one tooth. They saw roughly twice the amount of regeneration that occurred on the untreated tooth, after a sin...

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