STORY: Researchers in London have developed a dental treatment using keratin, a protein found in hair, skin, and wool, that they say can repair damaged tooth enamel. ''Currently enamel, once it's gone ...

There are scores of toothpastes available on the shelves, but dentists say there are right and wrong options.

Scientists in the UK have found keratin, a protein in hair, can rebuild enamel and repair early tooth decay. The discovery could lead to keratin-based toothpaste or dental gels within two to three ...