What causes cavities ? - Mel Rosenberg

When a team of archeologists recently came across some 15,000-year-old human remains, they made an interesting discovery : the teeth of those ancient humans were riddled with holes. So what causes cavities and how can we avoid them ? Mel Rosenberg takes us inside our teeth to find out. Lesson by Mel Rosenberg, animation by Andrew Foerster. Read more : https://www.youtube.com/watch?v=zGoBFU1q4g0