"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." There are a lot of factors that go into choosing a toothbrush beyond just manual or electric. Do you want ...

Add Yahoo as a preferred source to see more of our stories on Google. Even though all primary teeth eventually fall out, it's important to take care of them. Loss or decay of these teeth can deform ...

The buildup of bacteria deep in our teeth can cause infections in difficult-to-reach areas, and scientists at the Indian Institute of Science have developed a set of tiny cleaning robots they believe ...