David Ward did a tutorial on sculpting teeth and creating a dragon.  For sculpting, I'd prefer the video tutorials over written ones.  And while he was sculpting teeth he ran into a problem n shows how to fix it.

the teeth bit from the johnny blender series

http://www.youtube.com/user/ward7299#p/u/18/TUneSeIv460

part 1 of the stylized dragon tutorials

http://www.blendercookie.com/2010/06/17/series-stylized-dragon-part-1/

 

 

 

divinerain