使用锥形束计算机断层扫描对下颌第三磨牙根管形态的回顾性研究 - 第二部分。
Retrospective Study of Root Canal Configurations of Mandibular Third Molars Using CBCT- Part-II.
作者信息
Somasundaram Pavithra, Rawtiya Manjusha, Wadhwani Shefali, Uthappa Roshan, Shivagange Vinay, Khan Sheeba
机构信息
Assistant Professor, Department of Conservative Dental Sciences, College of Dentistry, Qassim University, Buraydah, Kingdom of Saudi Arabia.
Reader, Department of Conservative Dentistry and Endodontics, Narsinhbhai Patel Dental College, Visnagar, Gujarat, India.
出版信息
J Clin Diagn Res. 2017 Jun;11(6):ZC55-ZC59. doi: 10.7860/JCDR/2017/20153.10072. Epub 2017 Jun 1.
INTRODUCTION
Abnormal root canal morphologies of third molars can be diagnostically and technically challenging during root canal treatment.
AIM
The aim of this retrospective study was to investigate the root and canal morphology of mandibular third molars in Central India population by using Cone Beam Computed Tomography (CBCT) analysis.
MATERIALS AND METHODS
CBCT images of 171 mandibular third molars were observed and data regarding number of roots, number of canals, Vertucci's classification in each root, prevalence of C shaped canal, gender and topographical relation of morphology in mandibular third molar was statistically evaluated.
RESULTS
Majority of mandibular third molars had two roots (84.2%) and three canals (64.3%). Most mesial root had Vertucci Type II (55.6%) and Vertucci Type IV (22.2%), distal root had Type I canals (87.5%). Over all prevalence of C shaped canals in mandibular third molars was 9.4%.
CONCLUSION
There was a high prevalence of two rooted mandibular third molars with three canals.
引言
在根管治疗过程中，第三磨牙异常的根管形态在诊断和技术操作上都具有挑战性。
目的
这项回顾性研究的目的是通过锥形束计算机断层扫描（CBCT）分析，调查印度中部人群下颌第三磨牙的牙根和根管形态。
材料与方法
观察171颗下颌第三磨牙的CBCT图像，并对牙根数量、根管数量、每个牙根的韦尔图奇分类、C形根管的患病率、性别以及下颌第三磨牙形态的地形关系等数据进行统计学评估。
结果
大多数下颌第三磨牙有两个牙根（84.2%）和三个根管（64.3%）。大多数近中根为韦尔图奇II型（55.6%）和韦尔图奇IV型（22.2%），远中根为I型根管（87.5%）。下颌第三磨牙中C形根管的总体患病率为9.4%。
结论
有两个牙根且有三个根管的下颌第三磨牙患病率较高。
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