A. negotiation. The surgeon expresses to the doctor the part he wants to shrink and the degree he wants to achieve. Doctors usually take X-rays or even magnetic resonance before operation to clearly understand the bone structure, and then make suggestions according to personal characteristics to determine the operation method.
B, anesthesia. Divided into local anesthesia and general anesthesia. From the surgical effect itself, both kinds of anesthesia can complete the operation, but in the process of incision and operation, the operator of local anesthesia will feel the vibration of the machine, thus producing fear. Therefore, if the surgeon wants to feel the operation completely, the doctor suggests using general anesthesia.
C. incision. Make an incision in the inner side of the mouth near the mandibular angle or cheekbone, cut the whole facial skin and muscle from the mouth, separate the muscle from the periosteum, expose the bone part that needs surgery, and then perform surgery. There was a method of extraoral incision before, but it was later eliminated. Because most of the blood vessels and nerves are in the position where the muscles connect with the skin, the incision is in the mouth, and there is a layer of muscle between the instrument and the nerve during the operation, which can increase the safety.
D, stop the bleeding Hemostatic effect not only affects the safety of operators during operation, but also is an important factor in the occurrence of hematoma after operation. In addition to the need to stop bleeding when the muscle is separated from the periosteum, if you choose bone cutting surgery, you should apply bone wax to the wound of the bone to stop bleeding and help the bone recover itself.
E, surgery. Select the appropriate surgical method according to the needs. It is worth noting that during the operation, the dropped bone components must be washed with saline, because these powders will stick to the wound surface of the incision, and when the muscles return to their original positions, they will stick to the bone and continue to survive and grow.
Masticatory muscle therapy. Because the skeletal support structure of masticatory muscle changes after operation, the doctor will treat it according to masticatory muscle hypertrophy. If it is too fat, some muscles in the back can be removed to adapt to the new bone structure; If you are not too fat, you don't need to make additional adjustments because the muscles themselves will shrink after the operation.
G, suture drainage. When closing the wound, place a drainage tube to remove the congestion. Generally, the drainage tube can be removed on the second day after operation.
H, appropriate pressure bandage. By applying the face, it can not only stop bleeding, but also help to shape the face.
Me, recovering from surgery. If it is a bone grinding operation, it usually takes only one day to stay in hospital, and you can leave the hospital after pulling out the drainage tube. For resectable surgery, you will be hospitalized for three days to one week. In this process, the doctor will give the operator the right amount of antibiotics to prevent wound infection; Sometimes it is necessary to inject a small amount of hormones to reduce the degree of facial swelling.