Solar-Powered Toothbrush Supposedly Makes Toothpaste Obsolete

Researchers at the University of Saskatchewan have developed a solar-powered toothbrush that doesn’t require toothpaste. At the base of the brush is a solar panel, which transmits electrons to the top of the toothbrush through a lead wire. These electrons react with acid in the mouth, breaking down plaque without the help of toothpaste. It is an advancement of a model described 15 years ago using a titanium dioxide rod which released electrons when illuminated. The researchers are currently recruiting 120 teens to test the brush. The model is named Soladey-J3X and is manufactured by the Shiken company of Japan.
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