New Solar Powered Toothbrush Cleans Teeth With Light

Posted on August 27, 2010

Solar Powered Toothbrush

TreeHugger reports that the Shiken company of Japan is working on a solar powered toothbrush that does not use toothpaste. Instead of toothpaste the brush uses a solar panel and titanium dioxide rod to release electrons that react with acid in the mouth to destroy bacteria and break down plaque.
The technology apparently isn't a brand new idea. Komiyama came up with the first model 15 years ago. The new model, Soladey-J3X, is twice as strong but works in the same manner as the first model: a titanium dioxide rod in the neck of the brush releases electrons when light shines on it, which react with acid in the mouth to break down plaque as well as kills off bacteria that contribute to periodontal disease. This new model powers that reaction with a solar panel attached to the base.
Toothpaste manufacturers probably won't be happy if toothpaste goes away, but they are safe for now. The solar toothbrush is still in the testing phases. Discovery says the brush is currently being tested by 120 fickle teenagers.

Photo: Cnbeta