Preoperative 1, family accompaniment can improve the safety of the patient in the process of medical treatment, and can better communicate with the patient through the family. 2.Question the medical history in detail, understand the patient’s general condition, and make the treatment plan according to the patient’s condition. 3.With kind words, patiently do a good job in the preoperative, intraoperative and postoperative explanation work, to obtain the patient’s trust, understanding and cooperation, to eliminate the patient’s concerns, reduce the ideological burden, establish self-confidence, and actively cooperate with the treatment in a calm state of mind. 4. As the resistance of the elderly declines, antibacterial drugs and analgesic drugs can be used prophylactically before surgery. Due to the organ function decline, many elderly people also suffer from a variety of basic diseases and need to take drugs for a long time, the choice and dosage of surgical drugs should be based on the patient’s systemic condition, so as to avoid adverse reactions or antagonistic effects due to drug interactions, the amount of drugs should be based on the patient’s age, the degree of organ function decline, physical fitness and other factors, discretionary reduction of the amount of drugs, the use of less stimulation of the stomach. 5.Sedation techniques should be used for patients who are very fearful and have very poor pain tolerance. Intraoperative 1, the whole process of monitoring the patient’s vital signs, including heart rate, blood pressure and oxygen saturation. 2, choose the local anesthetic drugs with good anesthetic effect, long duration and low toxicity, and reduce the dosage as appropriate according to the patient’s age and organ function status. For elderly diabetic patients, the use of epinephrine-containing local anesthetic drugs should be avoided in the dense tissue injection, so as not to cause mucosal vasoconstriction leading to local tissue ulceration or necrosis. 3, it is best to use local infiltration and periodontal membrane injection of anesthesia. In order to avoid injection pain, it is best to carry out surface anesthesia on the injection site, use a fine needle, inject slowly, generally 1.7 mL/min, and pay attention to the back pumping when injecting to avoid accidental entry into blood vessels. Observe and ask the patient’s general condition during the operation, and stop the operation immediately if discomfort occurs. 4, try to let the patient sit or semi-sitting position during treatment. 5, the operation should be gentle, rapid, try to use dental pliers to extract the affected teeth, avoid the use of violence, timely communication with the patient to ease the patient’s tension, the assistant should use suction to remove the blood and saliva around the operation area in a timely manner. 6, when the elderly population multiple teeth extraction, in order to avoid postoperative bleeding, need to suture the wound. Postoperative After the end of treatment, patients should be allowed to observe in the rest room for more than 30 min, and be accompanied by their families to go home when their vital signs are stable and there is no bleeding from the tooth extraction wound. Leave contact information with the patient or family members, and consult the doctor in time if any problem occurs.