The manifestations after extraction of obstructed teeth usually include the following: 1) painful symptoms; 2) bleeding from the affected area, because after the extraction of obstructed teeth, some of the bleeding inside the oral cavity may occur in small amounts for a day or so, manifested as blood in the sputum; 3) restricted mouth opening; 4) swelling of the jaw and face; 5) dry socket in severe cases; 6) causing bruising of the external skin of the jaw. For the clinical judgment of obstructive teeth, molar teeth buried in the jawbone or after soft tissue coverage, can not erupt normally, can be called obstructive teeth, obstructive wisdom teeth, obstructive teeth classification, including proximal mesial obstruction or distal mesial obstruction, low obstruction, horizontal obstruction, etc.. Due to the lack of normal occlusal relationship between the opposing teeth, or insufficient eruption position, which will cause damage to the anterior teeth after tilting, they should usually be extracted.