Your smile is likely one of the first things a person notices about you. Now, experts have found that the shape of our teeth may have been influenced by Neanderthals.

A recent study found human teeth act like tree rings and store intimate details about a person's life. Left, a look at the second molar of a 35-year-old female who had children at ages 19 and 24.

In this week's Riskin Report on CTVNews.ca, Dan Riskin looks at how we can thank ancient climate change for the shape of our teeth.

Nocturnal teeth grinding can damage temporomandibular joints Date: March 3, 2022 Source: Medical University of Vienna Summary: Nocturnal teeth grinding and clenching of the upper and lower jaw are ...