Verma Gaurav Ravishankar, Bhadage Chetan, Bhoosreddy Ajay R, Vedpathak Priyanka R, Mehrotra Gayatri P, Nerkar Ashwini C, Bhandari Akanksha, Chaubey Shweta
Department of Oral Medicine and Radiology, Mahatma Gandhi Vidyamandir's Karmaveer Bhausaheb Hire Dental College and Hospital, Nashik, Maharashtra, India.
Department of Paediatric and Preventive Dentistry, Oxford Dental College, Bangalore, Karnataka, India.
Pol J Radiol. 2017 Jul 7;82:371-375. doi: 10.12659/PJR.901840. eCollection 2017.
The aim of the study was to determine the root canal morphology of permanent mandibular incisor teeth in the Indian subpopulation with the use of cone beam computed tomography (CBCT).
MATERIAL/METHODS: CBCT images of 200 patients with 800 permanent mandibular incisors, fulfilling necessary inclusion criteria and aged 18 to 60 years were evaluated. The number of roots, number of root canals and canal configuration were investigated and then classified according to Vertucci's classification of root canals. The effect of gender on the incidence of root canal morphology was also investigated.
All the permanent mandibular incisors had a single root. The majority of mandibular incisors (66.5%) had a single root with a single canal. The prevalence of second canals was as follows: right central incisor - 33.5%, left central incisor - 30%, right lateral incisors - 33.5% and left lateral incisor - 36.5%. According to gender, 15.2% of men and 20.4% of women had a second root canal. Type 1 Vertucci configuration was most prevalent, followed by type 3, type 2, type 5 and type 4 in that order.
Type 1 Vertucci's classification (64.5%) was the most prevalent canal configuration in the mandibular anterior teeth in the Indian population. Type 5 Vertucci's classification was the most frequently observed canal configuration of the two-canalled teeth. CBCT is an excellent imaging modality for detection of different canal configurations of mandibular incisors.
本研究的目的是利用锥形束计算机断层扫描（CBCT）确定印度亚人群中恒下颌切牙的根管形态。
材料/方法：对200例患者的800颗恒下颌切牙的CBCT图像进行评估，这些患者符合必要的纳入标准，年龄在18至60岁之间。研究牙根数量、根管数量和根管形态，然后根据维尔图奇根管分类法进行分类。还研究了性别对根管形态发生率的影响。
所有恒下颌切牙均为单根。大多数下颌切牙（66.5%）为单根单管。第二根管的发生率如下：右中切牙 - 33.5%，左中切牙 - 30%，右侧切牙 - 33.5%，左侧切牙 - 36.5%。按性别划分，15.2%的男性和20.4%的女性有第二根管。维尔图奇1型根管形态最为常见，其次依次为3型、2型、5型和4型。
维尔图奇1型分类（64.5%）是印度人群下颌前牙中最常见的根管形态。维尔图奇5型分类是两管型牙齿中最常观察到的根管形态。CBCT是检测下颌切牙不同根管形态的优秀成像方式。
