Now, Japanese researchers are moving a promising, tooth-regrowing medicine into human trials. If the trial is successful, the ...

The ability to grow replacement teeth could one day be a reality. With the discovery of adult stem cells in teeth, say scientists, there is every reason to believe tooth regeneration is possible.

Mammals, on the other hand, developed more specific diets ... But after our adult teeth grow in, the stem cells die and disappear. To understand why, let's take a journey back in time.