Children under the age of 14 are usually identified as pediatric. Due to their young age and poor autonomy and cooperation, child patients are prone to fear and dread during the consultation, and their crying emotions affect the treatment, which can lead to the risk of tooth extraction. 1. Children are very sensitive to pain and may easily mistake the sense of touch for pain, resulting in inability to cooperate autonomously during anesthesia and surgery, and struggling and crying may accidentally injure the surrounding tissues. 2. Children’s skin tissue is delicate and improper injection of anesthetic drugs may lead to local ulceration, edema or hematoma. 3.When the anesthetic drug is not completely gone, the sensation of the anesthetized area tissue is not restored, which can lead to lower lip bite. 4, Children are nervous and afraid, which can cause stomach cramps and vomiting, leading to contamination of the wound or choking and coughing. 5, the child’s laryngeal protection function is still immature, the pharyngeal reflex is not sensitive, when crying, such as dislocated teeth or roots fall into the pharynx is prone to accidental inhalation, accidental swallowing and into the respiratory tract or digestive tract. 6. Children have poor active cooperation ability and cannot bite down on the hemostatic tampon as required, which may cause postoperative bleeding. 7. Children have poor resistance and are prone to pain and swelling in the incision area after surgery. Sometimes systemic reactions such as fever may occur. Treatment 1. If a child vomits intraoperatively due to nervousness, stop the operation immediately, pick up the child, clean the vomit in the mouth and nose, clean the wound after the child is emotionally stable, and decide whether to continue the treatment according to the child’s condition. 2.When the tooth falls into the pharyngeal cavity, stop the operation immediately, ask the patient to incline the head to the affected side, adjust the chair position, lower the head, move the tooth to the mouth by gravity, and the assistant will suck it out with the suction device. Do not stimulate the patient’s tongue root and palatine pharynx when operating the suction device to avoid the patient swallowing the foreign body. 3.After the tooth is swallowed by mistake, the patient should be immediately righted and helped to spit out the foreign body; if the tooth is not spit out, X-ray examination should be performed to determine the location of the foreign body, and when it is confirmed to enter the digestive tract and there are no obvious symptoms, the patient can be properly observed and instructed to eat coarse fiber food to promote the discharge of the foreign body through the intestine. 4, teeth into the respiratory tract, laryngeal spasm, causing asphyxia, should be immediately rescued, adjust the chair position, so that the patient is placed in the left lateral position, head flat, encourage the patient to cough, cough out the foreign body; or use the international commonly used Heimlich (abdominal impact) first aid techniques to flush out the foreign body, contraindicated the use of chest impact. If the foreign body is not removed and is accompanied by increased inspiratory difficulty, the patient should be immediately referred to the ENT department for consultation. 5, the patient is awake during the operation, but the respiratory rate is accelerated and the respiratory depth is deepened, probably due to high tension resulting in hyperventilation of the patient. The operation should be stopped immediately, calm the patient’s nervousness, let the patient cover the mouth and nose with both hands, slowly and deeply whistle, and consider whether to continue the treatment according to the patient’s condition after the symptoms are relieved.