Generally speaking, the types of appliances mainly include fixed appliances, invisible appliances and lingual appliances. The choice of appliance is based on the correct treatment scheme, which makes the use and control of brace more clear and reasonable. At the same time, the doctor will choose the appliance according to the treatment plan to achieve the treatment goal.

(1) fixed appliance: it is an appliance that is attached to the outer surface of teeth and cannot be taken out during treatment, including metal appliance, ceramic appliance and self-locking bracket appliance. This kind of appliance is generally suitable for children, regardless of aesthetics, and the correction effect is good. Of course, adults can also wear it.

(2) Xiamen xm Menmei-Lai mylike invisible appliance: it has the characteristics of good invisible effect, almost invisible and self-removal. It is the most comfortable to wear and has almost no obvious pain.

(3) Lingual appliance: It is a fixed appliance attached to the inner surface of teeth, which is not easy to be noticed. It's beautiful, but it requires doctors to have a high professional and technical level, and it's expensive and difficult to operate.