Dr. O'Brien is the most gentle and calming dentist that I have ever had. Since moving out of the area I have opted to drive the three hours for appointments rather than finding a new dentist in my area. I have had a couple of cavities filled and he tells you everything that he is going to do before he does it. He even uses a two-shot injection procedure that is absolutely PAINLESS. Seriously... the man has never ever caused me an instant of pain! I have recommended him to all of my friends and even some complete strangers. His facilities are immaculate, his staff is wonderful and I can't imagine going anywhere else.