In children, the circumcision, medically known as dental antomandibular, is more appropriately corrected at the age of 3 to 5 years. During the period of milk teeth, dental antimaxillary cases are more common in dental and functional antimaxillary cases, and the jaw deformity is usually not obvious. The possibility of changing the tooth position and moving the jaw are both high during the period of milk teeth. For patients with predominantly dental factors, maxillary mouth cushions can accomplish both of these purposes; while for patients with more pronounced functional factors, mandibular joint-crowned beveled-guide appliances can yield excellent results. Therefore, if you find that your child has tooth antimandibular, you should bring your child to the hospital stomatology department in time, so that the doctor can correct the treatment as early as possible according to the situation.