Dentognathic deformity appliance

The utility model relates to a dentognathic deformity correcting appliance, which can cause a dentognathic position of a patient to generate a definite positive distortion on the original basis. The dentognathic deformity correcting appliance is a three-dimensional and thin-walled cavity on a space structure; the cavity portion which can coat tooth crowns of upper jaw teeth or lower jaw teeth of the patient comprises auxiliary cavities of which the number corresponds to the number of the teeth in the cavity, and the shape of each auxiliary cavity corresponds to the shape of the coated teeth. The side walls of a plurality of auxiliary cavities are provided with one or more openings for adjusting the distribution of correcting force. Through a plurality of dentognathic deformity correcting appliances, the dentognathic position of the patient can be gradually changed to the final target state from the original deformation state.