Usually a relaxed interview but it depends which interviewer you get. My essay was, 'what will be the biggest issue in dentistry in the next 10-20 years?' They usually use this question, but there's no guarantee. I just wrote about the healthcare access crisis, healthcare reform, medicaid budget cuts, CHIP, innovative state level public health programs, and stuff like that. Overall, a very low stress day. I wouldn't worry too much. Good luck.