The term “dental and maxillofacial malformation” refers to the abnormalities of jaw volume, morphology, and the relationship between the upper and lower jaws and other bones in the craniofacial area, as well as the functional abnormalities of the jaw relationship and the oral and maxillofacial system, which are caused by abnormal growth and development of the jaws. 1, the main causes are: (1) genetic inheritance: Crouzon syndrome, Robin Sequence and other embryonic normal development is blocked; (2) developmental: infection, injury, bad habits, etc.; (3) acquired: trauma, tumors, etc. (2) The main malformations of the teeth and jaws include: (1) mandibular protrusion deformity, i.e., geodesic; (2) mandibular deviation deformity; (3) maxillary protrusion deformity; (4) maxillary recession with mandibular protrusion; (5) bimaxillary protrusion deformity, i.e., acromegaly; (6) mandibular recession deformity. The malformation of the teeth and jaws not only affects the appearance, but also has a negative impact on their psychology. Of course, you do not have to worry too much, orthognathic treatment can be used to improve the appearance of the jaws. We will use the orthodontic model to make a clear diagnosis, propose a surgical treatment plan, and then make a plaster model of your upper and lower jaws, and simulate the surgery on the plaster model, so you can see the post-operative effect in advance through the simulated surgery. At the same time, our orthodontist will also give you a thorough examination of your oral physiological hygiene, and then make some recommendations for further orthodontic treatment that may be needed after the surgery, which is a good pre-surgical preparation. The surgical procedure usually requires a hospital stay of about one week. Under general anesthesia, the procedure is painless and the length of surgery depends on the degree of deformity, usually 2-4 hours. The incisions are made in the mouth so that there is no scarring on the face. After the surgery is completed, an infusion of antibiotics and hemostatic medication is required for 5-7 days to prevent infection and bleeding. On the first day after surgery, you can usually get out of bed normally. To prevent wound infection, you can only have a nasal fluid diet and oral rinses three times a day during your post-surgical hospital stay. After two days, the mouth will be ligated to strengthen the intra-oral occlusal anastomosis. On the 3rd and 4th day after surgery, the swelling of the face is often worse than the first two days, which is a normal physiological reaction, and then the swelling will gradually subside before the surgical results gradually appear. Absorbable sutures are used and no suture removal is required.