It sounds like it has an element of danger.

Malachi17

tech

First 'tooth regrowth medicine' to be tested in Japan from Sept. 2024

> The tooth regrowth medicine deactivates a protein called USAG-1, which inhibits the growth of teeth. The team believes that in the future it may be possible to grow teeth not only in people with congenital conditions, but also in those who have lost teeth due to cavities or injuries.

Kind of wild to think teeth would just grow from hitting a switch like this. It doesn’t sound like it’s very targeted/controllable though. I can’t tell if it’s injected at the site they want a tooth to grow or they just let the body decide.