I think that Dr. J is good. Although if you ask to many questions he becomes defensive. I was fitted for a mouth guard and concerned about my bite and wanted to know if the guard was going to effect it. While waiting for Dr. J. I asked his assistant to speak on my behalf. Dr.J. appeared very agitated by her questions. It was extremely awkward and uncomfortable. I felt so bad for his assistant. I think the staff must fear him I know I do now. Maybe he was just having a hard day.