I came to Dr O'Brien after a dental group in midtown tried to tell me I currently had eight cavities when I have had four total in my life before this visit (I'm 40). Dr. O'Brien found two and one to watch. I have also had a cap prep and fitting, teeth cleaning and deep gum cleaning with her and her crew. Everyone, there is nice, professional and does what they say they are going to do, for the amount quoted and at your appointment time. I am very happy I found them and would highly recommend them.