This is just my opinion, but I would highly advise anyone NOT TO DO JAW SURGERY unless its medically necessary. I had both jaws advanced but it was super necessary as I was having extreme sleep apena. Even still, I wish I would have been able to try things like a CPAP more because the surgery is brutal. I wouldnt be worried about going under, but more the very long and painful healing process. And everyone can make mistakes, including surgeons! I have a big scar I shouldnt have because while I was under something was wrapped so tightly around my head that it tore skin off my chin, caused an infection there and will be scarred for life. It was also so right around my head that it caused two bald spots. I'm only on my 6th week but I regret the surgery and wouldnt want anyone I love going through this recovery. Its easier to recover from open heart surgery than double jaw surgery.