In view of the harm of orthodontic tooth extraction, dentists pointed out that orthodontic tooth extraction is harmless for a certain reason. 1, use the extraction gap to sort out the congested teeth. Patients with congestion degree II-III are more likely to have their teeth extracted. 2. Retract the front teeth with the gap between tooth extraction, improve the protrusion of dental arch and improve the face shape. For example, some people's lips are protruding. After tooth extraction and correction, the protruding amount of lips will become smaller and the face will become beautiful. 3. Adjust the occlusal relationship of the posterior teeth by using the extraction interval, so that the posterior teeth are staggered and the occlusal contact area is the largest, and the best chewing efficiency is achieved. Don't worry too much about the harm of tooth extraction in orthodontics. In fact, compared with the previous tooth extraction treatment, the tooth extraction treatment in orthodontics is not so painful now. At present, many regular orthodontic hospitals use advanced anesthesia technology to extract teeth. The patient will only feel numb when pulling the tooth, and may also feel the doctor's action in his mouth, but he will not feel pain. With the development of anesthesia technology, the current tooth extraction will not cause too much pain to consumers. After tooth extraction, the anesthetic began to hurt slightly, and it stopped hurting after 12 hours. The purpose of orthodontic tooth extraction is to improve the appearance, arrange the remaining teeth in the best position and give full play to their functions. Before tooth extraction, oral and maxillofacial surgeons will make a comprehensive examination to determine whether local and systemic conditions are allowed. Under the premise of painless local anesthesia, the dentist will completely pull out the teeth needed for orthodontic treatment. Most tooth extractions are carried out at the doctor's suggestion and the patient's request. Therefore, orthodontists are required to have excellent medical skills and good medical ethics in the process of orthodontics. From the perspective of dynamic education, they should consider chewing, appearance, patients' psychology and other factors, and make decisions through taking photos, video, model analysis and medical history inquiry. So don't worry too much about the harm of orthodontic tooth extraction. You should go to a regular stomatological hospital for orthodontics, so as to ensure the orthodontic effect.