150例患者下颌中切牙根管系统的锥形束CT分析

上海口腔医学 ›› 2014, Vol. 23 ›› Issue (5): 601-604.

150例患者下颌中切牙根管系统的锥形束CT分析

张露东, 王海宁^*, 朱亚琴^*

上海交通大学医学院附属第九人民医院·口腔医学院口腔综合科,上海市口腔医学重点实验室,上海 200011

收稿日期:2013-09-04 修回日期:2014-01-02 出版日期:2014-10-20 发布日期:2015-02-04
通讯作者: 王海宁,E-mail：zjwanghaining@hotmail.com;
作者简介:张露东（1971-）,女,大专,主管技师,E-mail：muduproject@aliyun.com

Study of the root canal characteristics of mandibular central incisors in 150 patients using cone-beam computed tomography

ZHANG Lu-dong, WANG Hai-ning, ZHU Ya-qin

Department of General Dentistry, Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine Shanghai Key Laboratory of Stomatology. Shanghai 200011, China

Received:2013-09-04 Revised:2014-01-02 Online:2014-10-20 Published:2015-02-04

摘要/Abstract

摘要： 目的：运用锥形束CT分析下颌中切牙的根管数目和形态特征,为临床治疗提供参考。方法筛选就诊于上海交通大学医学院附属第九人民医院的150例患者的CBCT图像。其中,男79例,女71例,共295颗下颌恒中切牙,对根管的数目以及形态进行分析。结果 61%的下颌中切牙具有1个根管。具有双根管的下颌中切牙占39%,其中8.8%的牙有独立的2个根尖孔。结论本组下颌中切牙具有双根管的比例为39%,与其他有关不同人种下颌中切牙双根管的研究结果一致。

关键词: 锥形束CT, 下颌中切牙, 根管系统

Abstract: PURPOSE: To investigate the root canal characteristics of mandibular central incisors using a cone-beam computed tomography (CBCT) technique. METHODS: One hundred and fifty patients (79 males and 71 females) receiving CBCT scan at Shanghai Ninth People’s Hospital were recruited into this study. A total of 295 image samples of mandibular central incisors were obtained and analyzed in terms of the number and type of root canals. RESULTS: The majority of mandibular central incisors had a single canal (61% possessed a Type I canal system). Although 39% of the roots possessed two canals, only 8.8% had two separate apical foramina. CONCLUSIONS: The prevalence of two canals of mandibular central incisors in this case series was 39% and is within the range reported by previous studies on case series of different racial origin.

Key words: Cone-beam computed tomography, Mandibular central incisor, Root

张露东, 王海宁, 朱亚琴. 150例患者下颌中切牙根管系统的锥形束CT分析[J]. 上海口腔医学, 2014, 23(5): 601-604.

ZHANG Lu-dong, WANG Hai-ning, ZHU Ya-qin. Study of the root canal characteristics of mandibular central incisors in 150 patients using cone-beam computed tomography[J]. Shanghai Journal of Stomatology, 2014, 23(5): 601-604.

参考文献

[1] Wang Y, Zheng QH, Zhou XD, et al. Evaluation of the root and canal morphology of mandibular first permanent molars in a western Chinese population by cone-beam computed tomography [J]. J Endod, 2010, 36(11): 1786-1789.
[2] Walker RT. The root canal anatomy of mandibular incisors in a southern Chinese population[J]. Int Endod J,1988,21(3):218-223.
[3] Somogyi-Csimazia W, Simmons AJ. Three-rooted mandibular first permanent molars in Alberta Indian children [J]. J Can Dent Assoc (Tor), 1971, 37(3): 105-106.
[4] Curzon ME. Miscegenation and the prevalence of three-rooted mandibular first molars in the Baffin Eskimo [J]. Community Dent Oral Epidemiol, 1974, 2(3): 130-131.
[5] Reichart PA, Metah D. Three-rooted permanent mandibular first molars in the Thai[J]. Community Dent Oral Epidemiol,1981,9(4): 191-192.
[6] Ng YL, Aung TH, Alavi A, et al. Root and canal morphology of Burmese maxillary molars [J]. Int Endod J, 2001, 34(8): 620-630.
[7] Baroudi K, Kazkaz M, Sakka S, et al. Morphology of root canals in lower human premolars[J]. Niger Med J, 2012, 53(4): 206-209.
[8] Alavi AM, Opasanon A, Ng YL, et al. Root and canal morphology of Thai maxillary molars [J]. Int Endod J, 2002, 35(5): 478-485.
[9] Awawdeh L, Abdullah H, Al-Qudah A. Root form and canal morphology of Jordanian maxillary first premolars[J]. J Endod, 2008, 34(8): 956-961.
[10] 陈琴, 张裕, 张琪. 上颌第一恒磨牙根管形态的透明牙观察 [J]. 数理医药学杂志, 2007, 20(4): 482-484.
[11] Pineda F, Kuttler Y. Mesiodistal and buccolingual roentgenographic investigation of 7275 root canals [J]. Oral Surg Oral Med Oral Pathol, 1972, 33(1): 101-110.
[12] Weine FS, Hayami S, Hata G, et al. Canal configuration of the mesiobuccal root of the maxillary first molar of a Japanese sub-population [J]. Int Endod J, 1999, 32(2): 79-87.
[13] Pattanshetti N, Gaidhane M, Al Kandari AM. Root and canal morphology of the mesiobuccal and distal roots of permanent first molars in a Kuwait population—a clinical study[J]. Int Endod J, 2008, 41(9): 755-762.
[14] 欧阳勇, 凌均棨, 陈慧芝, 等. 下颌第二磨牙C形根管的临床研究 [J]. 中山大学学报(医学科学版), 2003, 24(z1): 172-174.
[15] Fan W, Fan B, Gutmann JL, et al. Identification of a C-shaped canal system in mandibular second molars. Part Ⅲ. Anatomic features revealed by digital subtraction radiography [J]. J Endod, 2008, 34(10): 1187-1190.
[16] Patel S, Dawood A, Whaites E, et al. New dimensions in endodontic imaging: part 1. Conventional and alternative radiographic systems [J]. Int Endod J, 2009, 42(6): 447-462.
[17] de Oliveira SH, de Moraes LC, Faig-Leite H, et al. In vitro incidence of root canal bifurcation in mandibular incisors by radiovisiography [J]. J Appl Oral Sci, 2009, 17(3): 234-239.
[18] 王慧明, 钟声, 黄晓晶. 上颌第一前磨牙根管解剖结构的观测及临床意义 [J].福建医科大学学报, 2006, 40(3): 267-269.
[19] 傅翔, 陈文霞. X线成像法与三维成像法观察磨牙根部根管数目的比较 [J]. 上海口腔医学, 2010, 19(1): 91-94.
[20] Scarfe WC, Fana CR Jr, Farman AG. Radiographic detection of accessory/lateral canals: use of RadioVisioGraphy and hypaque [J]. J Endod, 1995, 21(4): 185-190.
[21] Thomas RP, Moule AJ, Bryant R. Root canal morphology of maxillary permanent first molar teeth at various ages [J]. Int Endod J, 1993, 26(5): 257-267.
[22] 衡士超, 程勇, 李波, 等. 锥形束CT在牙体牙髓病诊治中的临床应用[J]. 中华口腔医学研究杂志(电子版), 2012, 6(1): 85-92.
[23] Vertucci FJ. Root canal morphology and its relationship to endodontic procedures [J]. Endod Top, 2005, 10(1): 3-29.
[24] Kaffe I, Kaufman A, Littner MM, et al. Radiographic study of root canal system of mandibular anterior teeth [J]. Int Endod J, 1985, 18(4): 253-259.
[25] Walker RT. The root canal anatomy of mandibular incisors in a southern Chinese population [J]. Int Endod J, 1988, 21(3): 218-223.
[26] Mauger MJ, Schindler WG, Walker WA 3rd. An evaluation of canal morphology at different levels of root resection in mandibular incisors [J]. J Endod, 1998, 24(9): 607-609.
[27] Sert S, Aslanalp V, Tanalp J. Investigation of the root canal configurations of mandibular permanent teeth in the Turkish population [J]. Int Endod J, 1985, 37(7): 494-499.
[28] Ahmed HA, Abu-bakr NH, Yahia NA, et al. Root and canal morphology of permanent mandibular molars in a Sudanese population [J]. Int Endod J, 2007, 40(10): 766-771.
[29] Huang CC, Chang YC, Chuang MC, et al. Evaluation of root and canal systems of mandibular first molars in Taiwanese individuals using cone-beam computed tomography [J]. J Formos Med Assoc, 2010, 109(4): 303-308.
[30] Al-Qudah AA, Awawdeh LA. Root canal morphology of mandibular incisors in a Jordanian population[J]. Int Endod J, 2006, 39(11): 873-877.
[31] Miyashita M, Kasahara E, Yasuda E, et al. Root canal system of the mandibular incisor [J]. J Endod, 1997, 23(8): 479-484.