patent http://wkms.org en The Morning Cram [squeaky clean chompers edition] http://wkms.org/post/morning-cram-squeaky-clean-chompers-edition <p></p><p><strong>From NPR: </strong>Inventors are on a quest for the <a href="http://www.npr.org/2012/12/27/168080635/the-quest-for-the-perfect-toothbrush">perfect toothbrush</a>. As of Christmas Day 138 patents had been submitted for an improved version of the twice daily tool. Surprisingly getting your teeth clean is a complicated ordeal. Thu, 27 Dec 2012 14:22:22 +0000 Whitney Jones 26131 at http://wkms.org The Morning Cram [squeaky clean chompers edition]