Thanks for all the responses to broken teeth. My father is having 2 extracted Friday( He really has no alternative) and will ask the dentist for any further information on the probability of causes, including bruxism and medications. The problem with associating it with med's is that most dentists (and some ER DR's) aren't at all familiar or even aware of the newer medications such as mirapex. It's hard to expect them to comment on them when they haven't even heard of them!