Malocclusion refers to the deformity of teeth, jaws and even the face caused by congenital genetic factors or acquired environmental factors, such as diseases, bad oral habits, abnormal tooth replacement, etc., which is mainly manifested as crowding of teeth (e.g., “tiger teeth”) during the process of children’s growth and development. Myth 1: only at the age of 12 years old teeth replacement can be corrected after the traditional concept that only at the age of 12 years old can be corrected. This concept is actually one-sided, and even harmful. Malocclusion is actually a developmental malformation, it is best to prevent and correct during growth and development. For the teeth, “Baodi”, small chin, facial asymmetry, serious buck teeth and serious teeth crowding, facial muscle function abnormalities, such as breathing with the mouth open during sleep, a variety of oral habits such as biting the lower lip, chewing sideways, etc., which affects the normal development of the facial skeleton and oral function, it is desirable to be corrected as early as possible. As the saying goes, “each person, deformity is different, the best period, also different”. Myth 2: orthodontic is a child and young people’s patent Many people think that orthodontic only for children and young people, middle-aged and elderly people can not be orthodontic treatment, in fact, this view is wrong. Adults, although growth and development has stopped, the external shape of the bone has been stabilized, but the internal regeneration of bone remodeling capacity still exists (such as after the fracture healing), generally speaking, adults if there is no serious periodontal inflammation, the teeth can be corrected. For 60-year-old adults and 12-year-old children, there is not much difference in the effect of orthodontic forces on the movement of healthy teeth. The number of adult orthodontists in Europe and the United States accounts for more than 1/3 of orthodontic patients, and the largest of the author’s orthodontic patients is 81 years old, and 50-60 years old is also more. Here we need to emphasize in particular: older, orthodontic difficulty may also be greater; adults have been stereotyped maxillofacial skeletal deformities can only be solved by surgical procedures, simple orthodontics can only solve their dental problems. Myth 3: Orthodontic pain can not eat and drink Each orthodontic force, the patient will feel a little soreness in two or three days, these mild discomfort can be tolerated by the general public and will soon disappear, orthodontic treatment is caused by the body’s normal reaction, do not have to worry about. As for diet, during the orthodontic treatment, you can not eat hard things such as (bone, hardcore) and very sticky things, other basic can eat, general orthodontic treatment can be a normal diet. Myth 4: tooth extraction orthodontic harmful Many patients or the patient’s family members of orthodontic treatment often need to extract teeth do not understand, worried about orthodontic treatment in the extraction of teeth will affect chewing, so that because of the unwillingness to extract the teeth and give up orthodontic treatment, this concern is redundant. Orthodontic extraction is the correction of some malocclusion must take steps, orthodontic treatment through the orthodontic force on the teeth to rearrange, and in the process of rearranging the teeth often need a certain gap to align the crowded wrong teeth, or for some buck teeth patients inward protruding incisors, to improve the face shape. Where does the space come from? Extractions can provide usable space. From the orthodontic history of more than one hundred years at home and abroad, extraction orthodontic treatment has no obvious harm compared to non-extraction orthodontic treatment. Misconception 5: After orthodontic old teeth easy to fall out Some parents worry that orthodontic treatment will cause loose teeth in old age, or even early loss of teeth, this point of view is unscientific. Orthodontics is through the light orthodontic force induced teeth to move, is a slow biological remodeling process, the teeth are moved on one side of the bone resorption, the other side of the bone newborn reconstruction, and ultimately make the teeth move to the normal position. The process is gradual and the teeth are stabilized. Regular orthodontic treatment will not cause trauma to the teeth and periodontal tissues. Myth 6: The shorter the orthodontic treatment time, the better The amount of tooth movement is limited, generally 1.5 mm per month, moving too fast can lead to tooth loosening. According to the severity of each individual’s misalignment, the course of treatment is also different, generally 1.5-2.5 years or so, clinically some extremely serious cases of the course of treatment up to 3-7 years is also very normal. Some doctors or patients to shorten the time, do not follow the scientific law, exert too much orthodontic force, the result is that the patient’s pain is heavier, tooth looseness is large, and in serious cases, the patient will cause orthodontic tooth fall off. Myth 7: Imported orthodontic appliances are better than domestic ones Imported orthodontic appliances are better than domestic ones in terms of production process, but they are all designed in accordance with the size of foreigners’ teeth, and if they are mechanically applied to the orthodontic treatment of the nationals, the clinical results may be disastrous. Therefore, when applying imported orthodontic appliances, patients or parents may ask the orthodontist whether corresponding measures have been taken to make up for the above defects. The choice of orthodontic appliances is important, but the doctor’s diagnosis and treatment level is the key to determine the quality of orthodontic treatment. Myth 8: Orthodontics is very simple, looking for anyone is the same Orthodontics is a very complex treatment process, the general dentist can only be competent after at least 1 year of training in a specialized orthodontic institution and obtaining the qualification of orthodontist. Each step of the orthodontic patient’s examination, diagnosis, development of a reasonable orthodontic plan, and even the entire orthodontic process, is critical. We often come across some cases of orthodontic failure, such as pulling out the wrong teeth or delayed treatment time, these losses can not be recovered. Therefore, we suggest our patients to choose carefully and try to choose qualified orthodontists from regular medical institutions to complete the orthodontic treatment.