The perfect smile is created by opening the lips and having a mouthful of white, straight teeth. However, uneven teeth are forcing people to “smile without showing their teeth”. Now, the technology of orthodontics is being improved, so that people can bloom a bright smile without restraint. The best time to get orthodontic treatment is for children. The best age to get orthodontic treatment is different for different causes of malocclusion. From the point of view of the stage of dental development, during the period of milk teeth, some children are used to finger sucking, lip biting, tongue spitting, mouth breathing, etc. These may cause malformation of teeth bad habits, parents should promptly correct when found. If there is a case of “enameled teeth”, treatment should be started after the child’s milk teeth have grown, that is, around 3 years old. Second, adolescents The malformations that appear during the period of permanent teeth, generally between 11 and 18 years old is a good time to correct. The best age for orthodontic treatment is around 12 years old. At this time, the jaw and face of the child is still in a period of rapid growth and development, and orthodontics also need to take advantage of the potential of jaw and face growth and development to ensure that the efficiency of tooth movement and alveolar bone reconstruction to achieve the best state, so as to achieve perfect orthodontic results. Third, adults human teeth will be in a physiological state of movement throughout their lives, so even adults, can also be orthodontic, the best age before 40 years old, but the orthodontic effect will be correspondingly weakened as age increases. 6 steps of orthodontics 1, oral comprehensive examination of the patient’s oral health, such as lesions, need to be treated before orthodontic treatment. 2, take a model, also known as “bite impression”, for the doctor to diagnose the misalignment of the teeth and design, so that in the future treatment process for comparison checks. 3.Photography Before treatment, we will take pictures of the patient’s face and teeth together for comparison with the end of treatment. 4.X-ray examination Take a lateral view of the patient’s head and a full-mouth surface tomogram to understand the internal conditions of the roots and jaws. 5.Develop treatment plan Based on the model, photos and X-rays, a detailed treatment plan is developed after measuring, calculating and diagnosing the type of malocclusion. 6.Implementation of treatment Patients will be treated and orthodontic treatment will be carried out periodically according to the specific situation. Orthodontic 3 tools 1, general braces Traditional braces are made of steel wire, the cost is lower, but affects the aesthetics. In recent years, on the basis of wire braces began to use ceramic braces, although the cost is slightly higher, but does not affect the patient’s face, the aesthetics of the teeth, very popular. 2, lingual braces The aligners are all installed on the lingual side of the teeth for orthodontic treatment, the appearance of any orthodontic treatment device can not be seen. The disadvantages are that it is too expensive, affects pronunciation, and the patient feels uncomfortable. Therefore, this aligner is not widely used. 3, the third generation of braces Damon is the third generation of braces, with the advantages of low friction, fast correction, the cost is only slightly higher than ceramic braces, is being more and more people’s favor.