Nursing care of jaw angle operation site: Before awakening from general anesthesia, if frequent swallowing is found, attention should be paid to wound bleeding. Surgical incision is in the oral cavity, which is easy to pollute the incision and may increase the chance of postoperative infection. It is especially important to keep your mouth clean after operation. In order to overcome the blindness of oral care and improve the curative effect of oral care, we can measure the pH value with pH test paper, and then choose appropriate mouthwash, such as 2% ~ 3% boric acid water or Dabbert solution, physiological saline, etc. When the pH value is 7.0 ~ 7.5.

If the pH value is between 3.0 and 6.0, you can choose 1% hydrogen peroxide or 1% ~ 4% soda to rinse your mouth. Rinse your mouth after meals, and scrub the gingival sulcus 2 ~ 3 times a day with normal saline cotton balls to prevent food residues from entering the incision by mistake and causing infection. Keep the drainage tube unobstructed, observe the color and quantity of drainage, and record it accurately. Observe whether there is bleeding in the operating department and the tightness of dressing, and choose antibiotics according to the condition. The negative pressure drainage tube is usually removed 1 ~ 2 days after operation.

Dietary care: Because the surgical incision to remove the mandibular angle was placed in the mouth, and two negative pressure drainage strips were placed, part of the masseter muscle was surgically removed, and the external dressing was tightly wrapped, resulting in limited mouth opening, decreased chewing function and inability to eat normally, but the appetite and digestive function were good. So he was given high protein, high calorie and little slag for 3 days after operation. After removing the dressing, replace it with ordinary soft food, and let the patient chew with his mouth open as much as possible and exercise as soon as possible.