下颌第二磨牙C形根管发生率的研究  

Prevalence of C-shaped root canal system in mandibular second molars

作　　者：葛剑平[1] 周玥[1] 曹立群[1] 

机构地区：[1]同济大学口腔医院牙体牙髓科,上海200072

出　　处：《中国美容医学》2010年第8期1198-1199,共2页Chinese Journal of Aesthetic Medicine

摘　　要：目的:研究下颌第二磨牙C形根管系统的发生率。方法:选择年满18周岁本国患者的下颌第二磨牙为研究对象,通过锥形束CT(cone beam CT,CBCT)扫描,然后在矢状面、冠状面、横断面等多层面重建三维数据图像。根据C形根管系统的解剖学特征判断其发生率。结果:纳入本研究的共有124名患者(156颗下颌第二磨牙)。其中,具有C形根管系统的有66颗,发生率为42.3%。结论:C形根管系统在下颌第二磨牙中具有较高的发生率;CBCT在下颌第二磨牙C形根管治疗过程中,能为临床医师提供更直观、更准确的影像学依据。Objective The aim of this study was to investigate the prevalence of C-shaped canal of the mandibular second molars.Methods Choose native individules as study objects and 156 CT images of the mandible were collected.The incidence of C-shaped root canal system is verdicted according to its anatomic features.Results From 156 teeth,C-shaped canals were found in 66 teeth（42.3%）.Conclusion The incidence of C-shaped root canal system in mandibular second molars is very high and CBCT can provide direct and accurate information for dentists.

关 键 词：C形根管系统 下颌第二磨牙 锥形束CT 

分 类 号：R783[医药卫生—口腔医学]