for gum disease interested:
US scientists have developed a tiny plastic pill
that they say can prevent tooth loss by treating gum disease.
The pill sits between the threatened tooth and the diseased gum and releases drugs to relieve pain and swelling and fight plaque-causing bacteria.
The plastic also serves as a barrier, enabling the damaged gum and bone to not only heal but regenerate.
The State University of New Jersey team told the American Chemical Society that testing had already begun in animals.
http://news.bbc.co.uk/2/hi/health/5344690.stm