This toothbrush works through an ingenious, water and energy-saving, eco-friendly photochemical reaction.

Canadian scientists have come up with something that uses solar energy to clean your teeth. The Soladey-J3X solar toothbrush works through an ingenious, water and energy-saving, eco-friendly photochemical reaction. And you don’t need toothpaste to use it!

Dr Kunio Komiyama, a University of Saskatchewan dentistry professor designed the first solar toothbrush about 15 years ago. His newest dental creation is now being tested by university students in Japan.

The toothbrush has a solar panel at its base that transmits electrons through a lead wire in the top of the mechanism. The electrons react with acid in the mouth, and create a chemical reaction that breaks down plaque and kills bacteria. No toothpaste or water required.

No doubt this device will be popular with oversleeping students everywhere. But I think this might be a good resource for developing countries, too.

Poor dental hygiene has been linked to a decline in overall health of individuals, as well as many systemic diseases. A solar toothbrush could provide better oral hygiene to those without a readily available potable water source.

I don’t know yet who would pay for such a scheme, but it’s something to think about.