From what I have read it is no longer in favor. I had mind 10 years ago. The post op pain was off the chart. Now when I eat I have food come out my nose every once in a while. So nice when we are with guest. I have also had my upper and lower jaw broken and moved forward. The nerves they cut didn't heal correctly, so my face is in pain 24/7. Wearing a cpap mask is very painful but I don't have much choice. I just purchased a Gel insert that goes between my face and my mask. Any one have any experience with this. GelUnited.com