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Title: C-shaped root canal system in mandibular second molars in a Chinese population evaluated by cone-beam computed tomography
Author: Zheng Q; Zhang L; Zhou X; Wang Q; Wang Y; Tang L; Song F(宋凡)
Source: International Endodontic Journal
Issued Date: 2011
Volume: 44, Issue:9, Pages:857-862
Abstract: Zheng Q, Zhang L, Zhou X, Wang Q, Wang Y, Tang L, Song F, Huang D. C-shaped root canal system in mandibular second molars in a Chinese population evaluated by cone-beam computed tomography. International Endodontic Journal, 44, 857-862, 2011. Aim To evaluate the anatomical features of C-shaped canal systems in Chinese mandibular second molars by cone-beam computed tomography (CBCT). Methodology A total of 608 patients of Chinese descent with healthy, well-developed mandibular second molars were enrolled. These patients were referred to the West China Hospital of Stomatology and required radiographic examination by CBCT as part of their routine dental treatment. Of the 608 examined CBCT images, 528 showed unilateral intact molars and 80 showed bilateral intact molars. Bilateral molar data were only used to analyse the distribution of unilateral and bilateral occurrences of C-shaped canals. The following in vivo CBCT observations were made: (i) frequency and type of root; (ii) frequency of C-shaped canals by gender, age and tooth position (left versus right); (iii) the classification of cross-sectional canal images of C-shaped canals; and (iv) unilateral and bilateral occurrences of C-shaped canals. Results Fused roots were present in 39% of molars. A C-shaped canal system was present in 39% of the teeth. This prevalence did not differ with gender, age and tooth position. Most (81%) of the C-shaped canals in individuals with bilateral molars were symmetrical. Most of the canals with uninterrupted 'C'-shapes appeared to divide into two or more canals towards the canal terminus. Conclusion There was high prevalence of C-shaped canals in the mandibular second molars of Chinese population. The canal systems varied considerably in their anatomical configuration.
Keyword: Cone-Beam Computed Tomography ; C-Shaped Canals ; Mandibular Second Molar ; Root And Canal Anatomy ; Permanent Teeth ; Anatomy ; 2Nd-Molars ; Features
Language: 英语
Indexed Type: SCI
Corresponding Author: Huang, D (reprint author), Sichuan Univ, Dept Conservat Dent, W China Coll Stomatol, Chengdu 610041, Peoples R China
Correspondent Email: dingminghuang@163.com
DOI: 10.1111/j.1365-2591.2011.01896.x
Related URLs: 查看原文
DOC Type: Article
WOS Subject: Dentistry, Oral Surgery & Medicine
WOS Subject Extended: Dentistry, Oral Surgery & Medicine
WOS Keyword Plus: PERMANENT TEETH ; ANATOMY ; 2ND-MOLARS ; FEATURES
WOS ID: WOS:000293538400010
ISSN: 0143-2885
Rank: [Zhou, X; Huang, D] Sichuan Univ, Dept Conservat Dent & Endodont, W China Coll Stomatol, Chengdu 610041, Peoples R China; [Zheng, Q; Zhang, L; Wang, Q; Wang, Y; Tang, L] Sichuan Univ, State Key Lab Oral Dis, Chengdu 610041, Peoples R China; [Song, F] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100080, Peoples R China
Subject: Dentistry, Oral Surgery & Medicine
Department: LNM生物材料微结构和力学性能
Classification: 一类
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Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/44912
Appears in Collections:非线性力学国家重点实验室_期刊论文

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Zheng Q;Zhang L;Zhou X;Wang Q;Wang Y;Tang L;宋凡.C-shaped root canal system in mandibular second molars in a Chinese population evaluated by cone-beam computed tomography,INTERNATIONAL ENDODONTIC JOURNAL,2011,44(9):857-862
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