牙齿矫正的方法有哪些？
What are the methods of Orthodontics?
活动矫治器：一般常用于乳牙和替牙期的比较简单的错和畸形的矫正，或者配合固定矫治器进行矫治。病人自己可以摘戴。
Movable appliance: it is usually used for correction of simple faults and deformities in primary and substitute teeth, or with fixed appliance. The patient can take it on himself.
固定轿治器：最为常用的矫治器。患者自己不能摘戴。
Fixed car appliance: the most commonly used appliance. Patients can't take them off.
功能轿治器：主要用于替假山制作 不锈钢铸件 铝箔真空袋 七孔梅花管 hdpe硅芯管 液压钢坝 PVC软管 飞行激光打标机 沥青保温泵牙期或者刚刚换完牙还处于生长发育高峰期的儿童，利用功能矫治器可以矫正骨性错和畸形。
Functional car appliance: it is mainly used for children in the period of tooth replacement or just after tooth replacement, who are still at the peak of growth and development. It can be used to correct skeletal errors and deformities.
正颌外科：严重的牙颌面畸形，比如上颌前突，上颌后缩，下颌前突，下颌后缩，单纯的矫正不能解决时，就需要通过外科手术和正畸联合矫治的方法。
Orthognathic surgery: severe dentofacial deformities, such as maxillary protrusion, maxillary retrusion, mandibular protrusion and mandibular retrusion, which can not be solved by simple correction, need to be combined with surgery and orthodontics