The enamel on our teeth is the hardest tissue on the human body. A new study looks at the nanoscale structure of enamel from teeth dating as far back as 18 million years ago to see how it's changed.

SCNHRB copy (39088016474348) has bookplate: Smithsonian Institution Libraries, gift of Milo Hellman. SCNHRB copy has offprint article, "The natural history of the human teeth, by John Hunter: a study" ...

Losing a tooth is tough. If we lose the small living structures that help us chew our food, we're left with the options of replacing them with dentures or implants that can be costly. Beyond that, ...

While bones can regrow themselves when they break, teeth aren’t so lucky, and that leads to millions of people worldwide suffering from some form of edentulism, a.k.a. toothlessness. Now, Japanese ...

A new study reveals your molars may have more in common with prehistoric body armor than you’d expect. The next time you wince from an ice-cold drink or a too-hot slice of pizza, blame your ancestors.

Add Yahoo as a preferred source to see more of our stories on Google. Researchers implanted cultivated tooth constructs into the mandibles of six two-year-old mini pigs. Dental researchers from Tufts ...