I was afraid of bone cutting, so I chose a hospital based on reviews that said it didn't hurt, rather than a hospital with good after-sales photos. That hospital is Note Plastic Surgery. It was so painless that I couldn't believe that it was bone cutting surgery. It's been 4 years now. I'm happy because there are no side effects. The side-effect photos say that the facial contour looks saggy. I don't know if it's because my square jaw was so bad before the surgery.