Ting Han1, Yue Ma1, Lin Yang1, Xinyu Chen1, Xin Zhang1, Yan Wang2. 1. VIP Center, School and Hospital of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Biomedicine, Jinan, China. 2. VIP Center, School and Hospital of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Biomedicine, Jinan, China. Electronic address: wangyan1965@sdu.edu.cn.
Abstract
INTRODUCTION: The purpose of this study was to investigate the root canal configuration of the mandibular anterior teeth using cone-beam computed tomographic (CBCT) imaging in a Chinese subpopulation. METHODS: A total of 3,871 CBCT images of mandibular anterior teeth were collected from 648 patients who accepted CBCT projection as a preoperative assessment for implants or orthodontic treatment. The following items were recorded and evaluated: tooth position, root number, canal number, root canal type, the distance between the anatomic apex and the point at which the canal divided into 2 for mandibular anterior teeth with 2 root canals (excluding canines with 2 roots), and the distance between the 2 root canal orifices. The Fisher exact test was used to analyze the correlation between the number of root canals and tooth position. RESULTS: All of the incisors in this study had 1 root, and 1.32% of the canines had 2 roots. The prevalence of 2 root canals in the lateral incisors (354, 27.36%) was higher than that in the central incisors (202, 15.71%) (P < .05) and the canines (81, 6.27%) (P < .05). CONCLUSIONS: There is a high prevalence of 2 root canals in the mandibular anterior teeth of the studied Chinese subpopulation. This study provides detailed information about the root canal morphology of mandibular anterior teeth in a Chinese subpopulation.
INTRODUCTION: The purpose of this study was to investigate the root canal configuration of the mandibular anterior teeth using cone-beam computed tomographic (CBCT) imaging in a Chinese subpopulation. METHODS: A total of 3,871 CBCT images of mandibular anterior teeth were collected from 648 patients who accepted CBCT projection as a preoperative assessment for implants or orthodontic treatment. The following items were recorded and evaluated: tooth position, root number, canal number, root canal type, the distance between the anatomic apex and the point at which the canal divided into 2 for mandibular anterior teeth with 2 root canals (excluding canines with 2 roots), and the distance between the 2 root canal orifices. The Fisher exact test was used to analyze the correlation between the number of root canals and tooth position. RESULTS: All of the incisors in this study had 1 root, and 1.32% of the canines had 2 roots. The prevalence of 2 root canals in the lateral incisors (354, 27.36%) was higher than that in the central incisors (202, 15.71%) (P < .05) and the canines (81, 6.27%) (P < .05). CONCLUSIONS: There is a high prevalence of 2 root canals in the mandibular anterior teeth of the studied Chinese subpopulation. This study provides detailed information about the root canal morphology of mandibular anterior teeth in a Chinese subpopulation.
Authors: Mazen Doumani; Adnan Habib; Ahmad Basem Alhalak; Talal Fhmi Al-Nahlawi; Fadi Al Hussain; Salman Mohammed Alanazi Journal: J Family Med Prim Care Date: 2020-02-28