Japanese manufacturers from Shiken Company and researchers from the University of Saskatchewan might soon be ready to release a solar-powered toothbrush. Called the Soladey-JEX, the toothbrush works by causing a chemical reaction in your mouth via solar energy to eliminate two types of bacteria which contribute to plaque.
The toothbrush doesn’t require much solar energy to function since it only requires as much light as a solar-powered calculator. A titanium dioxide rod is placed on the neck of the brush, just below the nylon brushes. Light falling on the wet titanium rod and on a solar panel situated at the base, will release electrons through an enclosed wire and react to the acid found in the mouth to break down the plaque.
There’s no need for toothpaste!