How long it takes to remove wisdom teeth depends mainly on the eruption position, surrounding resistance, and root development of wisdom teeth, and should be analyzed on a problem-specific basis. Before wisdom tooth extraction, patients usually need to take oral surface tomograms to assess the ease of wisdom tooth extraction, which generally takes a relatively shorter time in the maxillary wisdom tooth extraction than in the mandibular one. If the crown of the wisdom tooth is fully exposed in the mouth and is vertically erupting, the extraction of such wisdom teeth usually takes about 10-20 minutes. If the wisdom tooth is buried and obstructed, it usually takes more than 30 minutes. In addition, the fewer crowns, more roots, and more complex the shape of the wisdom tooth, the more difficult it is to extract the wisdom tooth and the longer it takes to remove it. After wisdom tooth extraction, patients can apply cold compresses to the wound first, and then apply hot compresses after a day.