TED-Ed
Mel Rosenberg: What causes cavities? (2016x113)
Bemutató időpontja: 2016 Nov 17
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. [Directed by Andrew Foerster, narrated by Addison Anderson, music by Devin Polaski].
- Bemutatott: 2012 Ápr
- Epizódok: 1330
- Követők: 0