Mandibular third molar (wisdom tooth) obstruction is the most common of all the obstructed teeth and often causes pericoronitis, caries, and crowding of anterior teeth, so it needs to be extracted. Mandibular wisdom teeth extraction is a complex surgery, in the past, commonly used clamp extraction method, jerk out method, debridement method, split method. The hammer and chisel method of removing the bone and extracting the teeth is very traumatic, and the postoperative pain and swelling is obvious, so many patients are afraid of extracting the teeth. Huang Diyan, Department of Stomatology, Jinan Military General Hospital At present, our department introduces advanced minimally invasive tooth extraction technology to remove 20 cases of various types of mandibular blocked teeth, which is clinically observed to have the following advantages: small trauma, no pain during the operation, light reaction after the operation, and fast recovery. Minimally invasive and painless tooth extraction technology has brought gospel to dental patients.