For more than a century, dentistry has focused on repairing or replacing damaged teeth, not growing new ones. That assumption is now under direct challenge, as Japanese teams move a first-of-its-kind ...

There are specific conditions that need to be met for the drug to regrow teeth — it might not spontaneously grow new teeth in just any person who takes it. A rumor has circulated online since at least ...

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 ...