When I was a kid, my teeth were so messed up it was scary. x;
Braces and several jaw appliances (I had a nasty overbite, as well) later, and my teeth are fine. Somehow. ?_?
Chris, did you only have to wear the headgear at night?
I had one a long time ago to wear at night, but I didn't actually wear it enough for it to work haha. So I ended up with metal bars in my mouth to pull my jaw the right way. You couldn't even see them, though. It worked a lot better, considering I was unable to completely take out something that was attached to my teeth, so I only had it for a year or so.