Thursday, February 26, 2009

Why not grow new teeth?

Forget dentures: Why not grow new teeth? Scientists discover gene that appears to be in charge of tooth formation

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 wear out.

A single gene appears to be in charge, preventing additional tooth formation in species destined for a limited set. When the scientists bred mice that lacked that gene, the rodents developed extra teeth next to their first molars — backups like sharks and other non-mammals grow, University of Rochester scientists reported Thursday. To read more...

1 comment:

Anonymous said...

Its called implants.