There seem to be clinical trials underway for regrowing teeth in Japan: https://www.popularmechanics.com/science/health/a60952102/tooth-regrowth-human-trials-japan/
There seem to be clinical trials underway for regrowing teeth in Japan: https://www.popularmechanics.com/science/health/a60952102/tooth-regrowth-human-trials-japan/