Scientists discovered true teeth growing on the head of the spotted ratfish, a distant shark relative. The toothed structure, ...

Research groups around the world are working to find ways to implant or grow real biological teeth in a human jaw.

Teeth are just one factor that put some shark species at the top of the ocean food chain. They can be razor sharp, and number in the hundreds in one shark’s mouth alone. They fall out and grow back at ...

A rumor has circulated online since at least 2024 claiming that Japanese researchers have developed a drug that might help people grow new teeth after proving its effectiveness in mice. The drug ...