Tissue Engineering is the hot thing with nano.Here is another report about progress.
Dental stem cells have been characterized for tooth tissue engineering: "Today, during the 84th General Session of the International Association for Dental Research, a team from The Forsyth Institute (Boston, MA, USA) will report that their research has demonstrated that mixed populations of cultured post-natal tooth bud cells can be used to generate bioengineered dental tissues."
(Via Brightsurf Science News :: Science News and Current Events.)