上颌窦内壁分隔的 CBCT 观测

目的：通过CBCT观测上颌窦内壁间隔的解剖特点及分布规律。方法：调取苏州口腔医院放射科接受CBCT扫描的汉族患者的CT图像资料360例。 Mimics 17．0软件对上颌窦进行三维重建。对上颌窦间隔的发生率、数目、形态、位置及双侧分布状况进行观测。结果：360例中，上颌窦间隔的人群总发生率为37．8％，双侧发生占34．6％，双侧相关系数tau值为0．357（P＜0.01）。分布位置常位于磨牙区。不同性别组、年龄组、牙列缺失缺损及牙列完整组间发生率的差异无统计学意义（P＞0．05）。结论：上颌窦间隔在汉族人具有较高的发生率，了解其解剖特点及分布规律具有重要的临床意义。

Detection of maxillary septum by cone-beam computed tomography

Objective:To reveal the anatomic features and distribution rule of the maxillary septum. Method:CT image data were collected from 360 Han Chinese patients who accepted cone-beam computed tomo-graphy(CBCT)scanning in the Department of Radiography in Suzhou Dental Hospital.Mimics 17.0 software was used for three-dimensional reconstruction of the maxillary sinus, and the number, shape, location, and bilateral symmetry of the maxillary septum were detected.Results:The prevalence of maxillary septum was 37.8%,and the bilateral concurrence rate was 34.6%.The Kendall’s correlations coefficient(tau)between antimeres was 0. 357( P<0.01) .The site was mostly located in the molar zone.The gender,age,and the presence or absence of the teeth/tooth corresponding the sinus,didn't significantly affect the occurrence rate of the septum(P>0.05). Conclusion:The prevalence of maxillary septum in the Han Chinese population is high.Understanding their ana-tomic characteristics and distribution rule is of great clinical significance.