I agree. I am also confused by the negative review. I have had a lot of problems with my teeth and Dr. Masters had to see me several times. He was absolutely great. It was not painful at all. I had a bit of pain after one of my root canals and they saw me within an hour of me calling to take care of that with antibiotics. Dr. Masters is the best of the best. You will not find a better dentist. He makes root canals easy.