After struggling to find an honest dentist in the DC area for quite some time, I finally found a great dentist in Dr. Tummarello. He did the entire cleaning and exam process himself, and was very friendly and careful. I left my old dentist after she tried selling me every service she could offer before I could lay down in the dentist chair, and she suspiciously found a cavity after I was given a clean bill of health from her assistant. I had the complete opposite experience with Dr. Tummarello. He didn't try to sell me anything - he just cleaned my teeth and gave me an honest evaluation (no cavities this time). I will be going to his office for a long time.