The interview is one hour long at Houston (or so). They do have your file and they have a list of questions that they must ask. My interviewer liked to just converse for a little and let the questions come organically. There were a few awkward questions that he started off by saying "So I hate to ask this, but...". Some of the questions were pretty generic like what's your biggest strength and stuff like that. One of the harder (but not really unexpected) questions was "What is an ethical dilemma you've faced?". He also asked me what I would do if I was working in a group practice and one of the dentists became addicted to drugs. That was pretty awkward and he didn't seem very satisfied with my answer for whatever reason. For some reason my interviewer was the only one that didn't do hour long interviews. He concluded both of his interviews after 30 minutes which made me kind of uncomfortable thinking I did something wrong. So don't fear if that happens to you! That's just him. Let me know if you were curious about anything else. I'm kinda just writing whatever comes to mind.