Newser on MSN

Forget toothpaste: This powder whitens and repairs

The problem with popular teeth-whitening agents, like peroxide-based gels, is that they risk damaging tooth enamel while they ...
The Healthy @Reader's Digest on MSN

We asked 4 dentists to name the best mouthwash—and they all said the same thing

While that minty burn sure seems like it's working, oral hygiene experts explain why that's not what you want in your rinse.