A new vibration-activated whitening powder uses electric toothbrush motion to brighten teeth while repairing enamel and influencing oral bacteria. Tooth stains are not always a brushing problem. Some ...

Forget strips, gels, and pastes. Your next tooth-whitening and repairing substance might well be a new powder developed by ...

If you’ve never heard of tooth powder, you’re not alone. This age-old product was the precursor to toothpaste, but it fell out of favor decades ago. Even though it’s hard to find on store shelves, ...

Rachel Funchess has a secret weapon to get her teeth really white. First she turns them black. “I literally just got black goo everywhere,” says the 19-year-old blogger from Greenville, S.C., as she ...