关键词: 激光, 第三磨牙, 拔牙, 并发症

Abstract: Extraction of impacted third molars is one of the most common operations in oral and maxillofacial surgery. However，due to the influence of the anatomical position of third molars，postoperative complications are still common. Laser is a new minimally invasive auxiliary means，which has antibacterial and anti-inflammatory properties，healing promotion and strong hemostatic function. It is widely used in many oral areas，such as oral soft tissue tumor resection，frenum repair，peri-implant inflammation，periodontitis，gingival molding，orthodontic tooth movement，caries treatment and so on. At present，there are few reports on the application of laser in the extraction of impacted third molars. This paper summarizes the types，mechanisms and effects of laser in the extraction of impacted third molars，so as to provide reference for clinical practice.

Key words: laser, third molar, teeth extraction, complications