基于CBCT对下颌切牙根管构型的研究  

Study of root canal configuration of mandibular incisors based on CBCT

作　　者：代艳虹 王本材 陈明雄 DAI Yanhong;WANG Bencai;CHEN Mingxiong(Department of Dental Endodontics,Hainan Stomatological Hospital,China,Haikou,570100;Department of Oral Radiology,Hainan Stomatological Hospital,China,Haikou,570100)

机构地区：[1]海南口腔医院牙体牙髓科,海口570100 [2]海南口腔医院放射科,海口570100

出　　处：《实用口腔医学杂志》2022年第4期518-521,共4页Journal of Practical Stomatology

摘　　要：目的:应用CBCT研究下颌切牙根管形态。方法:纳入240例11~70岁患者的CBCT影像资料,研究其下颌切牙根管构型。结果:下颌中切牙、侧切牙双根管率分别为16.87%和25.83%(P<0.05),且年龄间(10~20、21~30、31~40、41~50、51~60、61~70岁)有统计学差异(P<0.001);双根管对称性发生概率下颌中切牙为72.34%,侧切牙为75.75%;釉牙骨质界处唇舌径,单、双根管者分别为(5.39±0.28)mm和(6.25±0.19)mm(P<0.05),且男性大于女性(P<0.05)。结论:下颌切牙双根管率与牙位和年龄相关;釉牙骨质界处唇舌径与根管构型和性别相关。Objective:To study the root canal morphology of mandibular incisors with CBCT.Methods:CBCT images of 240 patients aged from 11 to 70 years were included for the study of the root canal morphology of mandibular incisors.Results:The double root canal rates of mandibular central incisors and lateral incisors were 16.87%and 25.83%(P<0.05)respectively,and there was statistically significant difference among age groups(10~20,21~30,31~40,41~50,51~60 and 61~70 years)(P<0.001).The incidence of double root canal symmetry was 72.34%in mandibular central incisors and 75.75%in lateral incisors.The labial-lingual diameter at the cementum-enamel junction boundary was(5.39±0.28)mm and(6.25±0.19)mm for single and double root canals(P<0.05),and that in the males was larger than in the females(P<0.05).Conclusion:The double root canal rate of mandibular incisor is correlated with tooth position and age.The labial-lingual diameter of cementum-enamel junction was correlated with root canal configuration and gender.

关 键 词：CBCT 下颌切牙 根管形态 年龄 唇舌径 

分 类 号：R816.98[医药卫生—放射医学] R781.33[医药卫生—临床医学]