Crooked permanent teeth require orthodontic treatment, which utilizes orthodontic appliances such as orthodontic archwires to pull the permanent teeth into a normal position, as described below. Orthodontic archwires function with the help of orthodontic brackets, which are bonded to the surface of the teeth, and the interaction between the orthodontic archwires and the brackets is utilized to apply force on the teeth to shift them. The whole process utilizes the rigidity of the archwire as well as the principle of alveolar bone remodeling. Common orthodontic methods include labial fixed orthodontics and invisible orthodontics, of which invisible orthodontics is more aesthetically pleasing due to the transparency of the aligners. If the abnormal position of teeth is serious or accompanied by other symptoms, it is recommended to visit the hospital in time and choose the appropriate treatment with the help of the doctor.