During the whole plastic surgery, the mandibular branches on both sides should be broken first, then pulled back to restore the normal occlusal relationship between the upper and lower teeth, and then the corresponding internal fixation should be carried out, and then the upper and lower teeth should be fixed, so that the orthognathic surgery of the mandible can be carried out.

Plastic surgery is a very dangerous operation. Although the operation is simple, it is very destructive, and it will crack at the gingival sulcus and cut off its inferior alveolar bone. The great harm of the operation is that some bones need to be removed and the teeth on them need to be pulled out. If it is mild, orthodontics can be performed, and for severe cases, the occlusal relationship can be repaired. For a seriously ill patient, surgery is very dangerous. It is recommended to go to a regular hospital for treatment, so as not to affect the unsatisfactory surgical results.

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