Surgery for mandibular fractures is usually considered only when there is an obvious misalignment of the mandible, and general anesthesia is usually necessary to perform the surgery, and general anesthesia is also required for intubation, otherwise there is a risk of oral bleeding during the surgery, which may lead to aspiration. In addition, the skin and subcutaneous tissue must be cut to expose the fracture end, and the fracture of the mandible must be completely dissected and repositioned before the plate can be used for internal fixation. Generally, there must be at least three holes on both sides of the fracture line to fix the fracture end with screws to make it more stable, and the purpose of anatomical repositioning is to make the teeth fit together. If there is a slight misalignment, it may affect the alignment of the teeth and may lead to separation of the front and back or sides of the teeth.