Teeth don’t grow back, as your dentist might like to remind you while revving up the drill for a root canal. But scientists have now found a way to regenerate dentin , the hard stuff in the middle of the tooth, right in the mouth. It’s surprisingly simple, too—all it takes is a blast of laser. Read more…
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A Simple Blast of Laser Could Help Your Teeth Grow Back
Starting today, all of Apple’s retail stores will accept any of the company’s ageing products for recycling —and, if it looks resaleable, you might even get some store credit, too. Read more…