Minimally invasive tooth extraction is less traumatic than ordinary tooth extraction and requires higher requirements from the physician. 1. extraction instruments: ordinary tooth extraction uses dental jaws, bone chisels or dental forceps; minimally invasive tooth extraction uses special minimally invasive extraction instruments, such as traction extractor and minimally invasive dental jaws; 2. extraction methods: minimally invasive tooth extraction requires more stringent operation techniques than ordinary tooth extraction. For example, with the traction extractor, the periodontal fibers are first stripped as much as possible using the periodontal membrane stripper, and then the bolt is driven into the root canal and the root is pulled out using the pulley retractor. Traditional extraction, on the other hand, is to loosen the tooth with dental jaws, then place the dental forceps on the labiolingual or buccolingual side to shake the tooth repeatedly to loosen the tooth and remove it from the labiolingual side; 3. Postoperative trauma: If ordinary tooth extraction is to remove the bone, a hammer or bone chisel is used, which can easily cause joint or local tissue damage; while minimally invasive tooth extraction tries to avoid operations such as large flap and bone grinding, which causes less damage to the alveolar bone and can effectively reduce postoperative swelling, pain, etc., and the postoperative recovery is more effective. It can effectively reduce postoperative swelling, pain, etc., and can be used to remove difficult teeth, obstructed wisdom teeth or buried teeth.