Jaw Surgery for Major Overbite?

Hello I have been going to the Marquette school of dentistry to get braces and fix my overbite since I was 13 years old now im 18 my teeth are straight but I still have a major overbite that the student dentist says can only be fixed via surgery my student doctor has said I don't need surgery but my past doctors said I do. I have a very receded chin and small lower jaw, don't bite correctly and my face is out of proportion been to two consultants saying I need surgery and some say I don't I want it

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