Dr. Kallal did orthognathic surgery on both my upper and lower jaws. I had a difficult bite to fix and he did a very skillful job. The surgery went smoothly and so was the recovery. Now I have a nice Class 1 bite and am very happy with the results. He has a lot of experience and has been doing these procedures for decades so I felt I could trust him. His follow-up care is thorough and his bedside manner is very good. I found the office (from billing to insurance) to be very pleasant and competent.