A new study from King's College London suggests that keratin—the protein found in human hair, skin and wool—can regenerate tooth enamel and potentially halt early tooth decay. Published in Advanced ...

Tooth problems have plagued mankind for millennia. We’ve gotten much better at it in the past century or so, but when a cavity breaks through your enamel, the approach is still simplistic: we drill, ...

Forbes contributors publish independent expert analyses and insights. Kate is a lifestyle writer based in New York City. You know the old saying — when all else fails, smile? These days, with oral ...