I went to Colorado's interview last year and I assume that it will be the same way. They have two groups, morning and afternoon. I did morning last year. Each interview group has about 20-25 people, so its not very intimate. They had lots of breakfast food and drinks out front. You will enter a brief meeting with everyone and will talk about the timeline of when you should hear back and how many instate and OOS they accept. Nothing very detailed... actually very vague.
Then you go back to the lobby and wait. You talk with about 3-5 Dental students as you waited for your interviews. Those dental students didnt appear to be assigned to certain interviewees, but rather were really there to just answer questions people had. Everyone goes in and out for two separate interview, at different times, so you could have a little space in between. After all the interviews you will take the tour with a group of students. Pretty basic... nothing like Tufts if any of you know what I mean.