287例汉族成人颏孔区锥形束CT测量分析

发布时间：2018-08-05 13:44

【摘要】：目的 :应用锥形束CT(cone-beam computed tomography,CBCT)对患者下颌骨颏孔、副颏孔、下颌神经前环等结构进行测量分析,为颏孔区手术提供参考。方法:收集2015年1月—2015年8月在湘雅医院口腔医学中心就诊的287例汉族患者的CBCT图像,对颏孔区的解剖结构进行分析。采用SPSS17.0软件包对数据进行统计学分析。结果 :颏孔多位于下颌第二前磨牙根方及下颌前磨牙之间(分别为60.80%、30.14%);副颏孔的发生率为4.88%,多位于下颌第二前磨牙根方,颏孔上方及远中;下颌神经前环的发生率为89.20%,长度为(1.99±1.39)mm;下颌第二前磨牙根尖到下颌神经前环或下颌管的距离为(5.21±2.50)mm。结论:颏孔区域可有副颏孔;中国汉族人下颌神经前环的出现率较高,变异大,颏孔区手术时应予以高度重视。
[Abstract]:Objective: to measure and analyze the structures of mandibular mental foramen, accessory mental foramen and anterior ring of mandibular nerve by cone-beam computed tomographic CT, and to provide reference for the operation of mental foramen. Methods: CBCT images of 287 Han nationality patients from January 2015 to August 2015 in Xiangya Hospital Stomatology Center were collected and the anatomical structure of mental foramen was analyzed. The data were analyzed by SPSS17.0 software package. Results: most of the mental foramina were located between the root side of the second premolars and the mandibular premolars (60.80%, 30.14%, respectively), the incidence of the accessory mental foramen was 4.88, mostly located in the root side of the second premolars of the mandible, above and far away from the mental foramen. The incidence of mandibular anterior ring was 89.20 and the length was (1.99 卤1.39) mm, and the distance from the root tip of mandibular second premolar to the anterior ring or canal of mandibular nerve was (5.21 卤2.50) mm. Conclusion: accessory mental foramen can be found in the mental foramen region, the occurrence rate of anterior ring of mandibular nerve in Chinese Han nationality is higher and the variation is large, which should be paid more attention to in the operation of mental foramen region.
【作者单位】：中南大学湘雅医院口腔医学中心;
【分类号】：R816.98;R782

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