It is more difficult to extract a low impacted tooth. Most of the wisdom teeth with low obstruction are buried in the gums and alveolar bone, and there is resistance from soft and hard tissues. When removing them, the gums need to be cut, the soft tissues separated, and the bone covering the surface of the crown needs to be abraded after fully exposing the alveolar bone surface. If the tooth is not properly positioned, the tooth should be divided into several pieces, and after removing them separately, it is necessary to place a gelatin sponge to stop bleeding and then close them with sutures. Highly obstructed wisdom teeth with crowns that are basically fully erupted and slightly resisted by the surrounding soft tissues can be removed with a simple incision, which is relatively less difficult to remove and causes less reaction.