Of course the skill of the surgeon is fundamental to the success of this procedure.
I am however yet to see a single case where a person didn't look objectively more aesthetic after their double jaw surgery, especially those who had overbites and long faces.
I understand it could take time for some people to adjust to their new face, and they could interpret those changes as a poor result even when everyone else disagrees.
If you have any examples where you think the after photo looks worse than the before, I'd been interested in seeing them.
They are not that hard to find. Impaction and advancement (and impaction is often done with advancement) have a huge impact on the nose.
The thinner the nose, the more likely it is to become wider. There was a woman here who had impaction and advancement by the best British surgeon (I forgot his name, but he's easy to find). She was devastated by the result - "no tooth show, wider nose, aged masculinised appearance". I thought she was exaggerating, but then she showed me the photos. AFAIK, she had the surgery revised.
The worse your starting point, the more likely you're to like your result. But over-impaction, over-advancement happen all the time. Over-impaction is ageing and can be very distressing, especially to women. Over-advancement makes you look like an ape (what I had). Maxillary surgery has a great potential to make you look worse.
