If the misalignment of teeth is due to heredity, no special treatment is needed. If it is caused by buck teeth, malocclusion and other diseases, surgical treatment can be taken to address the cause of the disease. 1. Heredity: Due to individual variability, some people are born with misaligned teeth, but if no discomfort occurs, no special treatment is needed. For those who have cosmetic needs, orthodontic treatment can be done by wearing an orthodontic appliance or by orthodontics. 2. Buck teeth: The misalignment of the upper and lower teeth may also be caused by buck teeth. If the age of the patient is 11~13 years old, the plasticity of the jawbone is good at this time, and can be taken to extract the teeth. Some patients can also take orthognathic surgery, mandibular ascending sagittal split, etc. After corrective treatment, buck teeth can be improved to some extent. 3. Malocclusion: The teeth are not aligned up and down, which is also considered to be caused by malocclusion. Patients can use orthodontic appliances, such as movable orthodontic appliances, functional orthodontic appliances and so on, or take dental orthopedic surgery and so on. If a patient has misaligned teeth, he or she can ask the doctor’s advice according to his or her own situation.