Toothpaste is something that lots of people use to keep their teeth clean. It makes our mouths smell nice and fresh, but that’s not the only thing it does! So, why do we use toothpaste? We asked dentist Dr. Jean Star to help us find the answer.
Got a question that’s stuck in your head, like spinach between molars? Send it to us at BrainsOn.org/contact, and we’ll help floss out an answer.

We’re back! Brains On Universe has a new headquarters
07:30

A big update about Moment of Um and the Brains On Universe
02:56

How do braces work?
06:19