Solar Powered Toothbrush Needs No Toothpaste
Scientists at the University of Saskatchewan may have invented a revolution in dental care — the solar-powered toothpaste-less toothbrush. It works by charging up via solar cells, then a chemical reaction causes the bacteria in the teeth to die. It’s called the Soladey-J3X, and it’s currently in testing with teenagers. Just make sure you have enough juice for that nighttime brushing.