I had braces when I was 11. Very shortly afterward, the braces were removed, my teeth began to shift. I wore my retainer every night but the orthodontist tried to say that I was non-compliant. In addition, I developed TMJ and other problems. I don't think braces are necessarily to blame but overzealous orthodontists are. They are too aggressive with young children, who need further development before imposing changes on their anatomy. I think that's what happened in my case. My growth was guided by the restrictive braces and now I have a narrow, elongated face, my jaw is crooked, and it's difficult to keep my mouth closed at rest. I can't chew gum and sometimes get dizzy after chewing hard foods. My orthodontist did not use an expander prior to treatment. This could have also been problematic for me.
Now in my thirties, I'm very unsatisfied with my appearance but I'm struggling with whether to get orthognathic surgery or not. My jaw pulls to one side now when my mouth is open and the angle of my lower jaw is too steep. However, I worry about making things worse with surgery. I do believe premature orthodontic treatment had at least, some effect, on my problems.