I had a couple hypothetical questions about what you would do in certain moral situations. I didn't have any current event or book questions. My interview was conversational and focused on why I want to be a dentist and what characteristics make me stand out.
The group part was easy. We got put in groups of four and were asked some sort of question about how to improve access to dentistry or how to get your patients to be more compliant. We had ten minutes to discuss our ideas and then had to do a two minute presentation.
The students and faculty are all positive and enthusiastic, though. Some people said their interviews were intense, but I thought mine was fine. The interview panel likes to keep all applicants on their toes.