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目的：本研究将锥形束CT应用于上颌窦影像学参数的测量，并比较不同性别、左右侧上颌窦间不同参数的差异性。方法选择200例正常成人的头颅锥形束CT影像，导入InVivo Dental软件进行三维重建，测量上颌窦前后径、左右径、上下径、容积和眶下壁骨质厚度，并使用SPSS 11.5统计软件进行分析。结果双侧上颌窦组间比较，上颌窦左右径、前后径、上下径、容积和眶下壁骨质厚度的差异均无统计学意义（P均＞0.05）；在不同性别组间比较，双侧上颌窦上下径、右侧上颌窦左右径和双侧上颌窦容积的差异均有统计学意义（P均＜0.05）。而左侧上颌窦的左右径、双侧上颌窦的前后径和双侧眶下壁骨质厚度的差异均无统计学意义（P均＞0.05）。结论锥形束CT可用来测量上颌窦的影像学参数，为临床提供影像学解剖数据。“,”[ABSTRACT]OBJECTIVETo estimate different dimensions of maxillary sinus measured on cone-beam computerized tomography (cone-beam CT), and determine the differences in side and gender.METHODScone-beam CT image data from 200 normal adults was selected and analyzed by Invivo Dental software. The craniocaudal diameter, anteroposterior diameter, width and volume of maxillary sinus were measured as well as the thickness of the orbital floor. Statistical analysis was performed with SPSS 11.5.RESULTSThere were no statistically significant differences in the craniocaudal diameter, anteroposterior diameter, width and volume of maxillary sinus between sides (P>0.05, respectively). Significant differences were noted in the craniocaudal diameter and volume of bilateral maxillary sinus and the width of right maxillary sinus based on gender (P0.05, respectively).CONCLUSIONOur findings indicate that cone-beam CT can be used to measure different dimensions of maxillary sinus and provide imaging anatomical data for clinical treatment.