For more than a century, dentistry has focused on repairing or replacing damaged teeth, not growing new ones. That assumption ...

While bones can regrow themselves when they break, teeth aren’t so lucky, and that leads to millions of people worldwide ...

Teeth help animals bite and chew food. Meat-eating carnivores tend to have sharp teeth to sink into their prey, while herbivores tend to have flatter teeth to grind down their plant-based meals. Some ...