1, orthodontics is the patent of the “little one”? We often say that 11 to 14 years old is the “golden age” of orthodontics, refers to the human body in the growth period, jawbone, alveolar bone growth and reconstruction is active, at this time for the correct growth induction and orthodontics, can greatly reduce the treatment difficulty and the incidence of adverse reactions, to achieve twice the result with half the effort. 2, orthodontics are to wait until after the “tooth replacement”? Generally speaking, “after tooth replacement” when the human body is just in the growth spurt, this is the most suitable for orthodontic treatment, but for milk teeth anti-He, severe crowding, serious jaw recession and other types of jaw misalignment, it is advisable to early intervention to achieve the purpose of lifting the bad growth type, reduce the difficulty of later correction. 3, the older you are, the more difficult it is to correct? Generally speaking, patients during the developmental period have a strong growth and reconstruction ability, and correction is often “good and fast”, especially for mild bony deformities, given appropriate orthopedic treatment during the developmental period of youth, often achieve good treatment results. With the growth of age, the body’s growth and reconstruction capacity decreases, gingival recession, root resorption and other adverse reactions will increase, and therefore the difficulty of orthodontic treatment increases accordingly. On the other hand, serious bone deformities can only be treated in adulthood with combined orthodontic-orthognathic treatment. 4.In terms of the causes of malocclusion, which bad habits you should not? Among the many acquired causes of malocclusion, finger sucking, lip biting, pen biting, mouth breathing, tongue spitting and abnormal swallowing habits are common causes of malocclusion, while healthy habits such as tooth brushing and regular oral care are necessary to prevent dental caries, missing teeth, periodontal disease and other factors that make malocclusion treatment more difficult. 5, the teeth are very aligned, but also to correct? We often say that the most important function of teeth is to bite, chewing power, and neat teeth does not necessarily mean good bite function, at the same time, neat teeth also often appear in the bimaxillary protrusion, envelope, jaw recession and other serious cases of bony deformity, so the indications of orthodontics is not only neat teeth or not, bite function, chewing system health and facial aesthetics is also an important aspect we need to consider. 6, extraction orthodontics, not to be? Modern human normal teeth are listed as 28 teeth, wisdom teeth commonly vary from 0 to 4. With the evolution of the human skeleton, the jawbone capacity and the amount of teeth appear out of sync, incongruent situation, often manifested as a relative increase in the amount of teeth, so since the 1950s, to reduce the number of orthodontic techniques for the purpose of extraction is popular worldwide, after decades of evidence-based medical certification, extraction orthodontics is a treatment based on the correct biological basis, and therefore clinically accepted by the majority of doctors and patients. 7.Orthodontics takes 3~4 years? The complete orthodontic process includes the orthodontic period and the maintenance period, the regular case orthodontic period often takes 1 to 2 years, while the length of the maintenance period depends on the type of malocclusion, the degree of correction of bad habits, the degree of tissue remodeling and so on, but it is usually considered that the 1 year after treatment is a more critical time period. 8.Invisible orthodontics, can I choose freely? With the development of computer technology and modern materials science, invisible orthodontics has become a common orthodontic technology, but as with ordinary drugs, it still has a certain range of indications for the selection of cases, it depends on the specialist orthodontist for the cause and extent of the patient’s malocclusion, orthodontic biomechanics and material science has a more solid foundation and rich clinical experience in order to make the correct The patient is recommended to consult with a regular, qualified medical unit and doctor. 9, invisible orthodontics, the time will be longer? In the same body, the efficiency of tooth movement under the same force is similar. Therefore, in theory, the invisible orthodontic tooth movement efficiency is similar to conventional orthodontic techniques, but things are special, different orthodontic techniques have different biological efficiency in terms of different types of misalignment, such as far from the middle to move the grinding teeth, may be invisible aligners will be more obvious advantages. 10, orthodontics will lead to premature loosening and loss of teeth? There is a huge misconception in the concept of “loose teeth in old age” that “the tooth has moved, so it is more likely to loosen”, which overlooks the root cause of periodontal disease. As a lifelong reconstruction of the alveolar bone, in “which” the teeth under the action of the appropriate orthodontic force, will occur physiological bone reconstruction process, while maintaining the health and stability of the surrounding structures, therefore, reasonable orthodontic treatment is not caused by premature loosening and loss of teeth. 11. Bone deformity, what should be done? Mild bony deformities are often treated with the compensation of the teeth, while severe bony deformities often require combined orthodontic-orthognathic surgery, while moderate bony deformities require a coordination and balance between the patient’s actual situation, subjective will and the attending physician’s treatment ability. 12.Which orthognathic deformities require orthognathic surgery? Orthognathic surgery is a radical surgical treatment to solve the incongruity of the jaws in three dimensions, such as up and down, left and right, front and back, etc. It needs close cooperation between orthodontist and maxillofacial surgeon.