"SCIENTISTS invented a toothbrush that lets you listen to music while you scrub away by transmitting soundwaves through your teeth and jawbone to your ear. The device, called Tooth Tunes, plays for exactly 2 minutes."
I have a similiar invention. It is called a R-A-D-I-O. You turn it on when you start brushing your teeth. Done.(And maybe scientists should be spending time trying to cure diseases or figure out how to save Katie Holmes)