Fracture treatment of maxillary fracture

1. Treatment of low horizontal fracture Simple maxillary fracture can be reduced by headgear chin bracket or intermaxillary traction, and then intermaxillary fixation 3? 4 weeks, supplemented by the upward braking of the chin with the head cap. Maxillary fracture with obvious displacement needs open reduction, restoration of occlusal relationship, and fixation with bone plates at the edge of zygomatic alveolar ridge and pyriform foramen.

2. Treatment of high-level fracture Once the high-level fracture is displaced, it usually needs open reduction. The operation should be carried out as soon as possible. The fracture was exposed and fixed through the combined approach of coronal incision, intraoral incision and small facial incision. If accompanied by orbital floor fracture, orbital contents should be reduced and orbital floor repaired through incision under eyelid margin or eyelid conjunctiva.

3. The treatment of sagittal fracture focuses on restoring the width of maxillary dental arch and occlusal relationship.

4. Treatment of old maxillary fractures usually requires LeFort classification osteotomy and reduction according to model surgical design and positioning plywood. In case of sagittal fracture with displacement, further block osteotomy is needed on the basis of LeFort I osteotomy. Antibiotics were used for about 3 days after operation to prevent infection. After operation, the occlusion was properly adjusted according to the specific situation of occlusion, and intermaxillary elastic traction was carried out for about 1 week according to the situation. Maintain oral hygiene after operation. Eat soft food for 2-3 weeks. Postoperative CT examination confirmed the reduction and fixation of fracture. Three months after operation, the occlusion and mouth opening were examined, and CT was reexamined to observe the fracture healing and whether there was inflammation in maxillary sinus.