Your condition is medically called pointed mouth deformity. In other words, your problems are mainly in bones, followed by teeth and lips. Facial contour can't be adjusted only by cosmetic surgery of teeth and lips. You need surgery to adjust the position of the upper and lower jaws. This kind of operation to adjust deformity belongs to oral surgery or plastic surgery. Since there is no photo attached, I can only say something simple and easy to understand according to your description. If you have the opportunity to go to the plastic surgery department of a third-class hospital, let the experts explain it to you, and you will understand. If you are in Shaanxi, go to the plastic surgery department of xi 'an Xijing Hospital, which is very famous.