Surgical purpose and effect: correction of gingival smile and improvement of temperament Surgical methods: 1, mild (not accompanied by maxillary protrusion): intra-oral incision, relaxation of bilateral upper lip square muscles, descending nasal septum muscle; if combined with the upper lip person in the short feasible external incision at the same time in the pedestrian lengthening and smile correction. 2, severe (with maxillary protrusion): go to oral and maxillofacial surgery for maxillary Lefort I osteotomy first. Pre-operative precautions: 1, no bleeding disorders and active or progressive diseases of the heart, lungs, liver and kidneys and other important organs, such as patients suffering from hypertension, diabetes or infectious diseases need to be operated after the condition is controlled smoothly. 2, Long-term users of steroid hormones and aspirin and other drugs should preferably stop using them one week before surgery, please consult the relevant doctor. 3.Suspension of surgery is recommended for those who have the following lip conditions: the presence of oral ulcers, folliculitis and other foci of infection in the lips, acute inflammation, etc. 4.Please avoid menstruation for female patients; suspend surgery in the first trimester (3 months) and second trimester (3 months) of pregnancy. 5.If combined with maxillary protrusion, correction of maxillary protrusion will bring better results and can be considered for orthognathic surgery at the Department of Dentistry first. 6.Since slight local swelling after surgery may last 2-3 months or even 6 months, the lip shape is slightly unnatural at this time, especially when smiling with limited lifting of the middle part of the upper lip, and it will gradually recover in about 3 months, so please consider avoiding important social occasions during this period when arranging surgery. Anesthesia: Local nerve block anesthesia: local injection of anesthetic at the surgical site, no additional charge. Intravenous general anesthesia: for long surgery time, many sites, or poor pain tolerance, intravenous administration, no tracheal intubation, additional charges (ranging from RMB 1500-3000 depending on the length of surgery). Pre-operative preparation: 1. Routine examination: (can be done on the day of surgery, no fasting for those under local anesthesia, fasting laboratory tests for those under intravenous general anesthesia; foreign patients can also be completed in advance at local tertiary hospitals to save time, valid for 3 months). Local anesthesia surgery: routine blood, urine routine, coagulation four, cosmetic immune four (hepatitis B, hepatitis C, syphilis, AIDS); intravenous general anesthesia surgery: the above six items, liver and kidney function, fasting blood sugar, electrocardiogram, chest X-ray. 2, those who choose local anesthesia normal diet, those who choose intravenous general anesthesia auxiliary 6 hours of preoperative fasting, 4 hours of abstinence from water. 3.Pay attention to the cleanliness of the operating area before surgery, cut short nasal hair and beard, and do not wear makeup. 4. Prepare postoperative medication: 2-3 ice packs, anti-swelling medication (1 week’s volume), pain medication (1-2 times), mouthwash (1 week’s volume). Post-operative precautions: 1. Apply ice packs on the lips for 30-60 minutes immediately after surgery, and 3-4 times a day for 30-60 minutes for the next 3 days. 2. Eat soft liquid food for the first 3 days after surgery, avoid overheated food, and pay attention to rinsing the mouth after eating. 1 week avoid exaggerated expressions on the lips, talk as little as possible, avoid laughing and yawning hard. You can brush your teeth, but pay attention to gently and do not touch the wound. 3. Avoid tobacco, alcohol, fish and shrimp, spicy and stimulating food for 1 week after surgery. 4.The intraoral sutures are absorbable and may not be removed, and will fall off on their own in 1-2 months; if you feel uncomfortable, they can be removed 7 days after surgery. 5. Except for special instructions, antibiotics are generally not routinely used. You can take anti-swelling medicine. Painkillers can be taken on the night of surgery. 6.Oedema, bruising and bruising in the post-operative area are normal, and the edema is usually the strongest 2-3 days after surgery. Most of them will gradually subside after 1-2 weeks. If you find swelling and bruising or increased pain, bleeding, etc., please contact the doctor immediately. 7.Local numbness or dullness of sensation of the lips may occur after surgery, which generally recovers gradually in about six months. 8, Daily pull-down upper lip training will be performed from 2 weeks after surgery to prevent the muscle from re-adhesive image effect. 9.The final result can be evaluated after 3 months after surgery, and if there is local undercorrection or overcorrection, asymmetry or local dissatisfaction can be repaired again after 3 months. 10.Please contact the doctor for follow-up after 6 months.