There are two people that interview you.
One is a faculty and the other is an officer who works at admission
for most people, the faculty is pretty nice: They ask questions like: Tell me about yourself, what was the biggest obstacles in your education and how did you over come it, why dentistry
the officer will ask question like how will you adjust to New York, what are your hobbies, why nyu
Pretty relaxed interview..
Dress well, be polite and conversational and you should be fine assuming your grades are within the range. Best of luck.
Yeah: I said almost everyone got a nice faculty, but there is one guy who is known to grill people and make them doubt coming to NYU, even when they answer why NYU, he still gives them counter back answers..so if you get that one, try to stay relaxed and confident with your ans.