tooth regrowth

https://dentistry.co.uk/2026/06/09/tooth-regrowth-in-adults-what-we-know-so-far/

Katsu Takahashi is lead researcher and head of the dentistry and oral surgery department at the Medical Research Institute Kitano Hospital. His research is based on the idea that humans once grew a third set of teeth following the milk and adult dentition. Dr Takahashi said that humans lost the ability to generate this third set of teeth over time but still possess the ‘buds’ from which they develop.

The presence of the USAG-1 molecule prevents potential tooth germs from forming into full teeth. It exists to regulate the number of teeth that healthy adults develop. Researchers hope that suppressing this molecule could lead new teeth to be grown from the vestigial ‘buds’.