I have a fairly severe protruding jaw, so in 2020, I watched YouTube and had double jaw surgery at a famous double jaw specialist dentist. According to the opinion of the orthodontist, I should not extract the tooth, so I proceeded with non-extraction orthodontics and preoperative surgery. Before the surgery, it was said that since the teeth were not extracted, the amount of jawbone correction may be reduced and a very slight protruding chin appearance may be left. Still, I thought it would be better to underperform rather than overdo the surgery for cosmetic reasons and suffer side effects. The surgery went very well and there were no paresthesia or other side effects! However, it is really painful to have the intermaxillary space fixed and not be able to breathe right after the surgery. It takes 3 months for the major swelling to go down. As long as you endure it well, it's okay.
As I mentioned in advance, my lower jaw protruded a little, but it was only visible to me when I looked closely, and I didn't hear any noise from other people. At the time, I didn't even think about selling myself and just did it at the first hospital, but since I have a dentist in my family, I found out later that both the orthodontist and surgeon were very famous in the dental world for double jaw surgery. Anyway, I'm satisfied!
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[Double Jaw] 
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