As everyone’s standard of living improves, more and more patients are looking to improve the aesthetics of their teeth through orthodontics. In the communication with the first-time patients, I found that many patients still have such and such misunderstanding about orthodontics. I put the most common questions asked by patients in clinical work is organized as follows, I hope to help you answer the doubts in your mind. Myth 1: Only children can receive orthodontic treatment. There is no age limit for orthodontics. Of course, teenagers have a fast metabolism and strong adaptability, and orthodontic treatment takes a relatively short time. But this in no way means that orthodontics is limited to minors. Adult patients can receive orthodontic treatment as long as the periodontal condition of the teeth themselves allows. Myth 2: Orthodontic teeth are easy to loosen and fall off when you get older. This is a typical pseudoscience. Confuse orthodontics with periodontal disease. To give a simple example, modern orthodontics is only a hundred years old, while hundreds of years ago there was no orthodontic era, when the elderly lost more teeth, it can be seen that tooth loss and orthodontics have nothing to do. Undeniably, the teeth in the orthodontic process due to the force and alveolar bone reconstruction, the degree of looseness will increase, but when the end of orthodontic treatment, the teeth will no longer be stressed that will recover on their own, there is no problem of future loosening and falling off. Myth 3: Orthodontics requires tooth extraction, will affect health, a clinical study of a Swedish university found that tooth extraction will affect the memory of people. Since it is a scientific study, we must pay attention to the evidence, individual one or two research reports simply do not explain the problem. Tooth extraction orthodontics is a very common and mature treatment, and tooth extraction does not cause any adverse effects on the function and health of patients. It should be said that tooth extraction is also a last resort. The facial shape of oriental people is characterized by a less straight nose and more protruding lips, and in order to achieve a better facial shape, many patients (60%) need orthodontic extraction. Myth 4: orthodontics is long and expensive, porcelain crown restoration course is short, once and for all. Teeth are different from machines, tooth movement itself is a physiological process, the speed of treatment is limited by the normal physiology. Adult orthodontics usually takes a year and a half to two years. Although porcelain crown treatment course is short, but dentures are dentures, after all, the maintenance and long-term prognosis (generally recommended porcelain crowns five to ten years to replace once) should not be ignored, and not like some doctors advertised as a lifelong restoration. Myth 5: Braces are not beautiful and affect work and life. Modern orthodontic technology is highly developed, and more and more types of braces, can be completely invisible orthodontic. And with the advancement of technology, invisible orthodontic indications are becoming more and more widespread, some of the difficult cases that were considered taboo in the past can also be well invisible orthodontic, there is little impact on work life.