Extraction of obstructed third molars (commonly known as wisdom teeth), especially the extraction of low, horizontally obstructed or embedded third molars, is one of the most difficult, difficult and challenging procedures in the field of oral and maxillofacial surgery, and the probability of postoperative reactions and postoperative complications is quite high, including postoperative infection, dry socket and inferior alveolar nerve injury, among which the inferior alveolar nerve injury will The damage to the inferior alveolar nerve will leave the patient with temporary or even permanent numbness of the lower lip and chin, causing great physical and psychological trauma to the patient. In the traditional wisdom tooth extraction surgery, due to the limitation of instruments and technical conditions, most of them simply emphasize on mechanical operation, and most of the doctors use chisel, splitting and prying methods such as bone chisel and dental jaws to remove wisdom teeth without much consideration to the patient’s injury, resulting in a variety of postoperative complications and mental pain to the patients, so that many patients have a serious fear of wisdom tooth extraction. In order to reduce surgical trauma, alleviate patients’ fears and make the surgical operation easier, the minimally invasive painless extraction technique has been proposed. In fact, minimally invasive technology and the minimally invasive concept have been widely used in the field of surgery recently, which requires the use of advanced surgical instruments and surgical ideas to complete the surgical operation with the smallest possible incision and trauma, so as to minimize the damage to the patient. In the field of oral and maxillofacial surgery, the extraction of obstructed wisdom teeth is the most important application of minimally invasive techniques. The previous method of splitting and debridement with a bone chisel not only vibrates a lot, but also removes a large and uncontrollable amount of bone, which often brings mental fear and serious postoperative complications to patients. With the continuous development of oral instruments, the emergence of minimally invasive extraction techniques, mainly using turbines and implants, has greatly reduced the trauma of tooth extraction surgery and avoided serious postoperative complications because of the low vibration of the head, low trauma, small and controllable amount of bone removal, clear surgical field, and significantly shorter extraction time.