上颌窦骨折（fracture of maxillary sinus）多见上颌骨骨折中，以上颌骨前壁塌陷性骨折为常见，上颌窦顶后部的骨壁较薄，颌面部受伤时，也可发生骨折。
双语例句
1
Method To rehabilitate orbit crack fracture by intranasal endoscopic technique passing through the approaches of nasal cavity or maxillarysinus.
方法：用鼻内窥镜经筛或经上颌窦治疗眶爆裂骨折。
2
Abstract: Objective: to establish a three dimensional ct measurement based on maxillarysinus and to evaluate clinically in the treatment of unilateral zygomatic complex fracture.