Teeth protrusion can be corrected by simple orthodontics and combined orthodontics and orthognathics. 1. Orthodontics alone: Teeth caused by protrusion are usually crowded, uneven and tilted outwards. Orthodontic appliances can be used to pull back the protruding teeth and retrieve the protruding teeth by occupying the space left by the extracted teeth. 2. Combined orthodontic and maxillofacial treatment: In case of bony protrusion, it may be due to the developmental problems of the jaws, and general orthodontic treatment cannot completely correct the protrusion. Patients can go to regular hospitals for combined orthodontic and maxillofacial treatment to repair the jaws to change the protrusion. It is recommended to consult a doctor in time to improve the relevant examination, clarify the cause of the disease, and carry out standardized treatment under the guidance of the doctor.