Teeth whitening powders are trending, but are they safe? Learn how they work, their risks, and what dentists recommend.

"Hydroxyapatite is natural. It is a type of calcium that makes up bones and teeth," says Lai. "Nano-hydroxyapatite relates to ...

The actor I was interviewing had the kind of smile that could light up a room. And by that I mean he had a glow in the dark, Ross in season six of "Friends," shade that doesn't occur naturally in ...

In a recent study on tooth color, participants ranked models with white teeth as more popular, friendly, intelligent, and confident. Participants also deemed models with whitened teeth to be younger ...