We asked dentists about the most effective ways to whiten teeth at home, and they shared their top picks for toothpastes, mouthwashes, pens, strips and kits.

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 ...

Tooth decay occurs when bacteria in the mouth produce acids that attack the enamel, or protective outer layer of the tooth. If left untreated, tooth decay could lead to gum disease, cavities, and ...