Still Waters Posted September 29, 2013 #1 Share Posted September 29, 2013 Forget electric toothbrushes - using 3D-printing, engineers have developed a new kind of toothbrush tailor-made to fit a person's mouth. All a person must do to brush is bite down. http://www.livescien...your-mouth.html Link to comment Share on other sites More sharing options...
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