Do not use this dentist. He broke a file off in my jaw while doing a root canal, but didn't tell me until after he was finished and added a crown. I have to go to an Endocrinologist to have the file removed and Dr. Riddle refuses to give me a refund. I paid $2,000 for the root canal and crown and will probably end up going to a free clinic and having to have my tooth pulled. He laughed and said it was no big deal because he had broken off 2 files in his mother's mouth.