Anatomical features of mandibular second molar C-shaped root canals in a Chinese population: a CBCT analysis.

IF 1.4 4区医学 Q2 Medicine

Surgical and Radiologic Anatomy Pub Date : 2025-04-05 DOI:10.1007/s00276-025-03626-8

Wenwei Hong, Jinzan Zhu, Liuhui Liu, Limin Zhang, Haifeng Tang

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引用次数: 0

Abstract

Purpose: C-shaped root morphology features narrow canals, root concavity, and thin dentinal walls, necessitating careful treatment planning and clinical expertise for effective cleaning and shaping.

Methods: This study included 401 total CBCT images of mandibular second molars with C-shaped root canals. Root morphology, root length, dentin thickness, and the location, length, width, and depth of the radicular groove were all analyzed with the Planmeca Romexis 3.1.0.R software. Fan Bing's C-shaped root canal classification method was used to classify all data, and SPSS was used for statistical analyses.

Results: These analyses revealed significant differences in radicular groove for mandibular second molars with C-shaped root canals across different root canal cross-sections. The mean respective root and radicular groove lengths for the analyzed molars were 11.64 ± 1.42 mm, and 9.34 ± 1.42 mm, and coronal, middle, and apical radicular groove incidence rates were 94.51%, 100%, and 98.75% respectively. The observed radicular grooves were widest at the coronal level and deepest at the middle level, while dentin was thinnest at the apical level.

Conclusions: This study offers an overview of the radicular groove characteristics in mandibular second molars with C-shaped root canals, providing anatomical data to assist clinicians in root canal treatment.

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中国人下颌第二磨牙c形根管的解剖特征：CBCT分析。

目的：c型牙根形态的特点是根管狭窄，根凹，牙本质壁薄，需要仔细的治疗计划和临床专业知识才能有效地清洁和塑形。方法：收集下颌第二磨牙c形根管的CBCT图像401张。采用Planmeca Romexis 3.1.0软件分析根形态、根长、牙本质厚度以及根沟的位置、长度、宽度和深度。R软件。采用范兵c形根管分类法对所有数据进行分类，并使用SPSS软件进行统计分析。结果：c型根管下颌骨第二磨牙根沟在不同根管横截面上存在显著差异。牙根沟的平均长度分别为11.64±1.42 mm和9.34±1.42 mm，冠状、中、根尖牙根沟的发生率分别为94.51%、100%和98.75%。牙根沟在冠状面最宽，中层最深，牙本质在根尖面最薄。结论：本研究提供了下颌第二磨牙c型根管根沟特征的概述，为临床医生进行根管治疗提供解剖学数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Surgical and Radiologic Anatomy Medicine-Pathology and Forensic Medicine

CiteScore

2.40

自引率

14.30%

发文量

期刊介绍： Anatomy is a morphological science which cannot fail to interest the clinician. The practical application of anatomical research to clinical problems necessitates special adaptation and selectivity in choosing from numerous international works. Although there is a tendency to believe that meaningful advances in anatomy are unlikely, constant revision is necessary. Surgical and Radiologic Anatomy, the first international journal of Clinical anatomy has been created in this spirit. Its goal is to serve clinicians, regardless of speciality-physicians, surgeons, radiologists or other specialists-as an indispensable aid with which they can improve their knowledge of anatomy. Each issue includes: Original papers, review articles, articles on the anatomical bases of medical, surgical and radiological techniques, articles of normal radiologic anatomy, brief reviews of anatomical publications of clinical interest. Particular attention is given to high quality illustrations, which are indispensable for a better understanding of anatomical problems. Surgical and Radiologic Anatomy is a journal written by anatomists for clinicians with a special interest in anatomy.