Wisdom teeth do not necessarily have to be removed, for the adjacent tissues may cause symptoms and lesions of wisdom teeth should be removed, for the retention value and asymptomatic wisdom teeth can not be removed, as follows. 1. Wisdom teeth that may cause symptoms and lesions: Wisdom teeth can cause pericoronitis, adjacent teeth caries, food impaction, root resorption of adjacent teeth, destruction of adjacent teeth and periodontal tissues, temporomandibular joint disorders, etc., and they should be extracted as soon as possible. 2. Wisdom teeth that have retention value and are asymptomatic: those that can erupt normally and establish normal occlusion with the opposite teeth, those that can be used as abutments for restoration, and those that can be moved forward to replace the second molar can be retained. It is recommended to go to the hospital to receive regular treatment.