The interviews themselves were great. 30 min with a dental student and 30 min with a faculty member.
The day itself was fantastic, as well. A talk from Dr. K that was extremely energized, a financial aid talk, lunch with dental students, etc. I think it's very similar to what other interview days are like at other schools, yet UNLV stands out in my mind because of how nice, approachable, and relaxed everyone seemed to be. It didn't have the "high-stake, anxious" feeling that you can potentially get at other schools.
It's a really fun day. You'll inevitably walk out feeling amazing. Good luck and let me know if you have any more questions!
(by how much I comment on here, is it surprising how much I loved it? haha)