A study out of Japan showed how targeting genes can regrow teeth in animals. Now, the team has turned to a human clinical trial.

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 ...

WASHINGTON — Ever wonder why sharks get several rows of teeth and people only get one? Some geneticists did, and their discovery could spur work to help adults one day grow new teeth when their own ...