Ancient tooth suggests Neanderthals were the first dentists

An unusual tooth found in a cave offers a rare glimpse into a surprising procedure prehistoric humans might have performed to fix a cavity 59,000 years ago.

Neanderthals used stone drills to treat cavities almost 60,000 years ago in what is the earliest known evidence of dental treatment.

The tooth was found in Chagyrskaya Cave, in Russia's Altai Mountains, and it belonged to a Neanderthal who lived there some 59,000 years ago.