This combination of images received by the Medical Research Institute Kitano Hospital in Osaka shows before (top) and after images of the regrowth of a teeth in a ferret (centre top and bottom) and mice (right and left). - AFP
TOKYO: People with missing teeth may be able to grow new ones, say Japanese dentists testing a pioneering drug they hope will offer an alternative to dentures and implants.
Unlike reptiles and fish, which usually replace their fangs on a regular basis, it is widely accepted that humans and most other mammals only grow two sets of teeth.
