A dental extraction results in the removal of a tooth from the mouth. It is a common, easy procedure that can be performed while you are awake, with a generous amount anesthetic so you do not feel any pain. Common reasons for performing tooth extraction include: intractable tooth decay, dental trauma, and periodontal disease. In children, sometimes baby teeth need to be extracted to allow room for the permanent teeth. Sometimes, wisdom tooth removal is also necessary if the tooth is impacted and pressing against the adjacent tooth.