C-shaped root canal system in mandibular second molars in a Chinese population evaluated by cone-beam computed tomography

doi:10.1111/j.1365-2591.2011.01896.x

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	C-shaped root canal system in mandibular second molars in a Chinese population evaluated by cone-beam computed tomography
	Zheng Q; Zhang L; Zhou X; Wang Q; Wang Y; Tang L; Song F(宋凡); Huang, D (reprint author), Sichuan Univ, Dept Conservat Dent, W China Coll Stomatol, Chengdu 610041, Peoples R China
发表期刊	International Endodontic Journal
	2011
卷号	44 期号:9 页码:857-862
ISSN	0143-2885
摘要	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.
关键词	Cone-beam Computed Tomography C-shaped Canals Mandibular Second Molar Root And Canal Anatomy Permanent Teeth Anatomy 2nd-molars Features
学科领域	Dentistry, Oral Surgery & Medicine
DOI	10.1111/j.1365-2591.2011.01896.x
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000293538400010
关键词[WOS]	PERMANENT TEETH ; ANATOMY ; 2ND-MOLARS ; FEATURES
WOS研究方向	Dentistry, Oral Surgery & Medicine
WOS类目	Dentistry, Oral Surgery & Medicine
课题组名称	LNM生物材料微结构和力学性能
论文分区	一类
引用统计	被引频次：89[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/44912
专题	非线性力学国家重点实验室
通讯作者	Huang, D (reprint author), Sichuan Univ, Dept Conservat Dent, W China Coll Stomatol, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Zheng Q,Zhang L,Zhou X,et al. C-shaped root canal system in mandibular second molars in a Chinese population evaluated by cone-beam computed tomography[J]. International Endodontic Journal,2011,44,9,:857-862.
APA	Zheng Q.,Zhang L.,Zhou X.,Wang Q.,Wang Y.,...&Huang, D .(2011).C-shaped root canal system in mandibular second molars in a Chinese population evaluated by cone-beam computed tomography.International Endodontic Journal,44(9),857-862.
MLA	Zheng Q,et al."C-shaped root canal system in mandibular second molars in a Chinese population evaluated by cone-beam computed tomography".International Endodontic Journal 44.9(2011):857-862.

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