The orthodontic treatment of malocclusion is as follows: 1. The malocclusion that occurs during the period of milk teeth can be corrected by wearing movable orthodontic appliances, muscle agonists, etc. to correct bad posture, break bad habits such as mouth breathing, cheek resting, tongue spitting, finger sucking, etc., intervene in the development of the jaws, and guide muscle remodeling. 2. 3. Severe bony malocclusion requires integrated surgical procedures to remove the overdeveloped jaws and establish the correct covering and overlapping relationship between the upper and lower jaws.