Like Doug said Canines, molars, bicuspids and insisors? Adult teeth or children teeth because there is a difference? Or as deepak mentioned try searching. I know there have been other threads in the past on modeling body parts perhaps there is some information in those threads that can help you. Each type of tooth will probably be modeled a little differently. One method might be to try and develop the geometry yourself which makes the model more flexible for changes. Or another way might be to have the teeth digitally scanned and brought into Pro/E as an import feature, though changes might be a bit more difficult.
Remember, this is your project we are not going to do it for you.
There, problem solved.
