下颌第二恒磨牙C形根管系统的锥体束CT研究  

C-shaped Root Canal in Mandibular Second Molars Evaluated by Cone-beam Computed Tomography

作　　者：李文婷[1] 曾红燕[1] 赵颖[1] 

机构地区：[1]首都医科大学宣武医院口腔科,北京100053

出　　处：《口腔医学研究》2014年第8期760-762,共3页Journal of Oral Science Research

摘　　要：目的:采用三维锥体束CT成像系统探讨下颌第二恒磨牙C形根管的发生率。方法:选择238名门诊患者/476颗下颌第二恒磨牙的CBCT扫描数据,进行三维重建下颌第二恒磨牙,观察C形根管的发生率。结果:存在C形根管的下颌第二恒磨牙共191颗,发生率40.12%;左右两侧同时发生C形根管的概率为31.9%;左右侧发生比率无统计学差异;男女发生比率无统计学差异。结论:C形根管在下颌第二恒磨牙中具有较高的发生率,CBCT影像技术能在诊疗过程中为临床医师提供更直观,更准确的影像学依据。Objective： To evaluate the anatomical feature of C-shaped canal in mandibular second molars by cone -beam computed tomography（CBCT）. Methods： The CBCT images of 476 mandibular second molars in 238 patients were selected to observe the C-shaped root canal occurance in mandibular second molars. Results： A C- shaped root canal was present in 40.12% of the teeth. The incidence of C-shaped root canal present in bilaterally was 31.9%. There was no significant difference between tooth position for detecting the C-shaped root canal. There was no significant difference in gender. Conclusion： High prevalence of C-shaped root canal was presented in mandibular second molars. CBCT provides more precise image to help clinical diagnosis and treatment.

关 键 词：下颌第二恒磨牙 C形根管 三维锥体束CT 

分 类 号：R781.05[医药卫生—口腔医学]