上颌窦位于颧骨下方，是头部四对鼻窦中最大的。
Located in our cheekbones, the maxillary are the largest of four pairs of sinus cavities in the human head.
目的：探讨眶上颌颧骨复合骨折复位固定的治疗效果。
Objective: to assess the treatment result of reposition and fixation to orbital maxillary zygoma complex fractures.
在冠状位截面影像上观察颧骨的形态并测量上颌牙槽嵴最颊侧点到上颌窦最外侧点的水平距离。
Measurements included the slope angle of zygomatic body on sagittal sectional image, the maximal horizontal distance from the buccal boundary of maxillary alveolar to outboard of maxillary sinus.
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