The problem with popular teeth-whitening agents, like peroxide-based gels, is that they risk damaging tooth enamel while they bleach. Now, Chinese scientists say they've developed a better option: one ...

Tooth whitening has long forced people to choose between brighter smiles and stronger enamel. A new vibrating tooth powder aims to end that tradeoff, promising to lift stains while actually rebuilding ...

Now, researchers have developed a prototype whitening powder that works differently. Instead of using high levels of ...