What are you strengths and weaknesses?
What happened with your DAT scores?
If you were doing a group assignment and someone in your group did not do his/her share of the work, what would you do?
Why did you go to graduate school?
What will you do if you don't get into dental school this year?
Who is your biggest role model?
Most interviews are easy and ask the basic questions. Some schools are known for asking weird questions though...
For instance, when I went for my NOVA interview, the students warned us about some questions:
What kind of a car would you be if you could be one?
Who would you sit next to on a plane ride?