I go to UMich for undergrad and it definitely is top tier for research and has a worldwide reputation on par with that of a Harvard, Columbia, etc. However, the patient pool is very minimal. In fact, most of the procedures are taken care of by residents, and students get some, but not nearly as much as at other schools. However, to compensate, I know sometime in like 3rd or 4th year in the summer, you have to go somewhere up North in Michigan and work there for a couple months in order to meet your patient requirements. I'm not sure if you heard about this on your interviews, but it doesn't sound too bad, but to my knowledge we are the only school that does that. UMich dental school is very good though, no doubt.