Wisdom tooth extraction requires radiographs, including apical radiographs or full mouth surface tomograms of the tooth. 1. Wisdom teeth are the last teeth in the mouth and are forced to be extracted when they become blocked due to lack of space during eruption. Wisdom teeth must be radiographed before removal. 2. Wisdom teeth have either rounded roots or multiple roots that are clasped together. A radiograph can determine the type of root and minimize the risk of root breakage during extraction. The radiograph can also determine the relationship between the wisdom tooth and the adjacent teeth, the position of the wisdom tooth buried in the jawbone, and the selection of the appropriate entrance to reduce the trauma to the bone tissue during extraction. 3. The mandibular wisdom teeth and the mandibular nerve canal are relatively close to each other, and radiographs can be taken to determine the location of the wisdom teeth so that the mandibular nerve canal is not accidentally injured during the removal process. In order to minimize bone trauma during wisdom tooth removal and reduce the risk of accidental injury to the mandibular nerve canal, apical radiographs or full-mouth surface tomograms of the teeth must be taken during wisdom tooth removal.