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Impacted teeth is a common alveolar surgical diseases.Pain is the most common symptoms of impacted teeth,the common reason for patients visit is the pain caused by impacted teeth.Most of the impacted teeth require surgical removal treatment,even affect the patients life and sleep,so removal of impacted teeth is one of the most effective way to solve the pain caused by impacted teeth.The pain brought by impacted teeth and surgical trauma in the perioperative have more significant impact on the patient,even affects the patients psychological.The pain caused by impacted teeth and the removal surgical operation both are the psychological stressors for patients,so the necessary analgesic treatment for the patients is one of the methods to maintain the physical and mental health of patients with impacted teeth pain as the main symptoms in the perioperative.