I have found that in a general sense, my interviewers had read some of my application. However, I felt that they remembered mainly general things, such as life experiences. I think that it is a good idea to just be yourself and tell them why you want to be a dentist. Stories are how people will remember you...so I like to tell a quick story about when I decided that dentistry was right for me. Either way, just be yourself...most interviewers are looking to see if you have communication skills.