Solar Lighting Guide posts about Dr. Kunio Komiyama, a dentist at the University of Saskatchewan College of Dentistry in Canada, who designed a new "solar-powered toothbrush", the Soladey-J3X, that cleanses the mouth without using toothpaste.
Reportedly, "when the light strikes wet titanium dioxide head more electrons being released, which are negatively charged fluid inside the mouth that can remove hydrogen ions from the plaque, making it easier to break down," which is apparently what makes the toothpaste unnecessary -- assuming all that Engrish made any sense to you.
The instruction diagram on the site is, unsurprisingly, all in Japanese and appears to be all about a Godzilla-sized toothbrush killing smiley-faces living on gigantic molars.
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