Orthognathic is what is referred to as orthognathic surgery. Orthognathic surgery focuses on surgical methods to change the coordination of the jaws, face and teeth. Before orthognathic surgery, it is usually necessary for orthodontist and surgeon to design a plan together. Teeth can be aligned before surgery, and for the overdevelopment or underdevelopment of the jawbone that causes incongruity of the occlusal relationship, bone amputation or increasing the bone length can be performed through surgery to achieve the state of jawbone and the occlusal relationship and facial incongruity. Orthognathic surgery also requires the orthodontist to make precise adjustments to the teeth to achieve better esthetic and occlusal coordination. Orthognathic surgery and orthodontic correction is a long-term overall process, and you need to cooperate with the doctor after choosing and determining the plan.