Whether delivered in water or toothpaste, fluoride can help guard teeth against decay. But how? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

We'd all love to have a flawless set of pearly whites. But whether it's a yellow stain, brown spots or chalky white patches, our teeth are rarely perfect. Instead of just being unsightly, these could ...

Advertisements for special toothpastes, powders and gums suggest that it’s possible. Here’s what dental experts say. By Katie Camero Most of us know that the best defense against tooth decay — or ...