I had my gums cleaned and two root canals. I had such a great experience. Did not feel any pain during and after. The staff is just great and Dr. Katz is just wonderful. He explains as he goes along and explains the procedure to where you understand what he is doing. I live in Sacramento and it is worth the trip to San Francisco to see Dr. Katz. I cannot express enough how wonderful the whole office is. They work with the insurance company and make you feel very special.