Land parcels are no strangers in daily life. Plot is a kind of tooth deformity. It not only has a great influence on people's facial image, but also has a great influence on people's psychology. Many friends have missed many opportunities, such as job opportunities and marriage opportunities. Therefore, the influence of that land on friends is really not small. Now orthodontics has become the theme of people, so? 1, general orthodontics: What we usually see is the orthodontic method of "Kouga with iron teeth". Orthodontic devices are attached to teeth with adhesive, so patients can't take them off by themselves, and they can only be disassembled and adjusted by orthodontists. It usually takes about 2-3 years and needs to be followed up once a month. The doctor gradually exerted his strength to move the teeth to reach the designed ideal state, and the orthodontic work was basically over. After the appliance is taken out, the retainer should be worn for a period of time to consolidate the orthodontic effect and prevent recurrence. 2. Invisible orthodontics: Traditional orthodontics is to bond a small iron piece called a bracket to the teeth and tie the orthodontic arch wire to make the teeth move and achieve the purpose of correction. Invisible transparent orthodontics is a 3D computer technology, which customizes a series of almost imperceptible transparent trays to complete the whole orthodontic treatment. The correction time takes about 2 years. 3. Shenzhen Plastic Surgery Hospital's "agile" dynamic orthodontic technology: BT straight wire arch orthodontic technology is an advanced orthodontic technology with brackets at present. Different from the previous edgewise brackets, the angle of straight edgewise brackets has been designed in advance, and the teeth will move in three dimensions according to the doctor's expectation, which not only shortens the orthodontic time span, but also better ensures the orthodontic effect. According to the anatomical position of different teeth, a certain angle is preset on the bracket of the appliance. Because there is no need to bend the top, second and third series of bends on the arch wire like the edgewise appliance, a straight arch wire with the basic shape of the dental arch can be put into the bracket to complete the lip-tongue, mesial-mesial, vertical and root-controlled movement of the teeth, so it is called a straight arch appliance. The above three methods are commonly used in orthodontics. With the development of the times, Shenzhen Plastic Surgery Hospital has attracted much attention. It can effectively help foreign friends to correct their teeth and let you have a neat tooth.