K.O.
We go to Dr. Fuselier near the Oak Hill Y. The whole office is super kid-friendly and "Dr Mary" is great with little ones. I took my son for the first time when he was 2 and he actually liked going to the dentist. I would recommend!
I also got him a book called "elmo visits the dentist" and it was very helpful in preparing him for the big day. He got to do everything "just like elmo did".
Good luck!