First, formal orthodontic treatment follows a rigorous and standardized procedure, so before orthodontic treatment, the doctor will provide a perfect orthodontic treatment plan through systematic examination 1, detailed consultation; 2, preparation of study materials and diagnostic records: models, X-rays (curved break, cranial lateral, joint film), facial and jaw images, etc.; 3, the doctor determines the treatment plan through model analysis, head shadow measurement and other information, patient informed consent; 4, orthodontic Preparation: full mouth cleaning, endodontic treatment, orthodontic extraction. Restorative treatment can be carried out after the completion of orthodontic treatment depending on the situation. 5.Bonding full-mouth brackets. Second, orthodontic treatment must pay attention to the problems 1, the first wear aligners and each review after the force, teeth may appear mild reactive pain or discomfort, generally last 3 ~ 5 days to reduce or disappear. 2, to pay attention to oral hygiene. Every morning, evening and after eating must be brushed, to brush the teeth on the soft scale and food residue carefully, otherwise easy to cause gingivitis, periodontitis, tooth decalcification and dental caries. 3, can not eat hard, sticky food, large pieces of food to get small before eating, to prevent damage to the aligner. If you find that the brackets are loose, the arch wire is broken, etc., you should contact the doctor in time to avoid affecting the effect of orthodontics and the course of treatment. 4, according to medical advice regular follow-up. Usually once every 4~6 weeks. If you do not follow up on time, there will be abnormal tooth displacement, or no progress in treatment, etc. Third, orthodontic treatment after the end of the need to pay attention to the problem 1, must be good to wear retainer, if the retainer is damaged or lost, must be re-made. 2.Review regularly.