After mandibular angle surgery, the whole face will be fragile for quite some time, so you must take good care of it during this time, otherwise it will bring you a lot of trouble. 1, you must eat well and sleep well a few days before mandibular angle grinding operation. It is more difficult for you to sleep well three or four days after the operation. 2. If there is no problem in completing the relevant examination, you can make an appointment for mandibular angle grinding surgery, preferably in the morning, and the doctor and you are in good condition. Remember to wear thin collarless clothes, otherwise the lights on the operating table will be very strong, and it will be uncomfortable to lie down for a long time. If you wear too much, you will feel very hot, and the high-necked clothes will also affect the doctor's operation. 4. Never remove or move the bandage after mandibular angle grinding. If the bandage is in the wrong position, your face will swell more and recover more slowly. 5. Try to talk less, eat less hard things, laugh less and cough less within ten days after mandibular angle grinding. In addition, mandibular angle plastic surgery is only a way to change the face shape, and mandibular angle hypertrophy is one of the causes of facial disorder, which is caused by congenital genetic factors and acquired by bad chewing habits. Therefore, it is also important to change the bad habits in daily life, such as chewing hard objects frequently and sleeping with your mouth open.