Whether orthodontics can only correct the upper teeth must be evaluated by regular doctors in the hospital before making a judgment. If the patient's teeth are slightly irregular or scattered in the gap, but the occlusion relationship is good, just adjust the crowding degree and close the gap, without mandibular treatment, just maxillary correction. However, some patients have a bad occlusion relationship and even a bad midline. Without mandibular correction, the midline is difficult to adjust, because occlusion is a two-way process, which is formed in the process of maxillary participation, so it is difficult to solve. If we want to adjust the occlusal relationship, we should also correct the maxilla and mandible, so we should finally decide the correction method according to the patient's situation and the doctor's evaluation.

Generally speaking, orthodontics takes about one to two years. Of course, according to the difficulty of orthodontics and the cooperation of patients, the time may be different. Some patients can be corrected in one year, and some patients can be corrected in about two years. If the patient has malocclusion, it is possible to do orthodontic treatment, also called correction, which is a treatment method to correct malocclusion. Teeth with irregular dentition, crowded dentition, buckteeth, uneven midline, etc. Can be corrected. Correction is a long process, and it usually takes about one to two years to correct teeth.

Precautions for orthodontics are as follows: 1. In the first few days of wearing braces, there may be toothache, chewing weakness and other phenomena, which are normal phenomena, so don't worry too much. 2. After wearing braces, when cleaning your teeth, you must master the correct cleaning method, be more patient, and try to clean your teeth and braces to avoid causing teeth and periodontal disease. Try not to eat food that is too hard, too big or too sticky. 4. Strictly follow the doctor's advice. Orthodontics is a long-term process. Active follow-up can not only facilitate doctors to check the health of teeth, but also adjust braces according to the orthodontic situation, which is very important for orthodontics. 5. After the braces are removed, wear the retainer in strict accordance with the doctor's advice to avoid tooth rebound.

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