Journal of Shandong University (Health Sciences) ›› 2018, Vol. 56 ›› Issue (4): 87-91.doi: 10.6040/j.issn.1671-7554.0.2018.157

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Cone beam computed tomography on the anatomical structure of maxillary first molars root canal

HAO Xinyu1,2, LI Jianhua3, ZHANG Jing3, NIE Xiaokun3, XIONG Shijiang2,3   

  1. 1. Department of Pediatric Dentistry, School of Stomatology, Shandong University, Jinan 250012, Shandong, China;
    2. Shandong Provincial Key Laboratory of Oral Biomedicine, Jinan 250012, Shandong, China;
    3. VIP Department, School of Stomatology, Shandong University, Jinan 250012, Shandong, China
  • Published:2022-09-27

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Abstract: Objective To explore the anatomical structure of the root canal of maxillary first molars with cone beam computed tomography(CBCT). Methods The CBCT data of 753 maxillary first molars were reviewed to observe the anatomical structure of the root canal system. Results Of all 753 maxillary first molars, 616(81.81%)had 4 canal roots, including 612(81.27%)MB2 and 4(0.53%)DB2; 135(17.93%)had 3 canal roots, 2(0.27%)had 2 canal roots; no single canal root was observed. Of all mesiobuccal canal roots, 383(51.00%)molars were type Ⅲ, 143(19.04%)were type Ⅴ, 136(18.11%)were type Ⅰ, and only a few molars were other types. Of all distobuccal canal roots, 747(99.47%)molars were type Ⅰ, and 4 belonged to the other types. All(100%)palatal canal roots were type Ⅰ. As to the length of the canal root, 1976(87.55%)were 7.1-12.0 mm, 178(7.89%)were 12.1-18.0 mm, and 103(4.56%)were 4.1-7.0 mm. Conclusion The root canal system of the maxillary first molar is complex and changeable. The anatomical structure of various root canals can be effectively observed with CBCT to provide the basic information for clinical treatment.

Key words: Maxillary first molars, Cone beam computed tomography, Anatomical structure of root canal

CLC Number: 

  • R781.03
[1] Zehnder M, Belibasakis GN. On the dynamics of root canal infections-what we understand and what we dont[J]. Virulence, 2015, 6(3): 216-222.
[2] 陈媛媛, 张文汇, 郭斌, 等. 比较注射冲洗与辅助超声荡洗对根管清洁效果的系统评价[J].华西口腔医学杂志, 2015, 33(2): 145-152. CHEN Yuanyuan, ZHANG Wenhui, GUO Bin, et al. Cleaning effect of ultrasonic activation as an adjunct to syringe irrigation of root canals: a systematic review[J]. Hua Xi Kou Qiang Yi Xue Za Zhi, 2015, 33(2): 145-152.
[3] Rodrigues E, Braitt AH, Galvão BF, et al. Maxillary first molar with 7 root canals diagnosed using cone-beam computed tomography[J]. Restor Dent Endod, 2017, 42(1): 60-64.
[4] Shetty H, Sontakke S, Karjodkar F, et al. A cone beam computed tomography(CBCT)evaluation of MB2 canals in endodontically treated permanent maxillary molars[J]. A retrospective study in Indian population[J]. J Clin Exp Dent, 2017, 9(1): e51-e55. doi: 10.4317/jced.52716.
[5] Neelakantan P, Subbarao C, Ahuja R, et al. Cone-beam computed tomography study of root and canal morphology of maxillary first and second molars in an Indian population[J]. J Endod, 2010, 36(10): 1622-1627.
[6] Chan HL, Misch K, Wang HL. Dental imaging in implant treatment planning[J]. Implant Dent, 2010, 19(4): 288-298.
[7] 田成. 前磨牙根管系统的CBCT研究[D]. 济南: 山东大学, 2013.
[8] Han T, Ma Y, Yang L, et al. A study of the root canal morphology of mandibular anterior teeth using cone-beam computed tomography in a Chinese subpopulation[J]. J Endod, 2014, 40(9): 1309-1314.
[9] Vertucci FJ. Root canal anatomy of the human permanent teeth[J]. Oral Surg Oral Med Oral Pathol, 1984, 58(5): 589-599.
[10] Pekiner FN, Borahan MO, Dumlu A. Evaluation of distolingual canal/roots in mandibular molars and mesiobuccal canals in maxillary molars by CBCT[J]. Open Dent J, 2017, 11: 360-366.
[11] 马海峰, 耿海霞, 钱君荣, 等. 锥形束CT图像经Planmeca Romexis软件三维影像重建鲁西南地区汉族人下颌第一恒磨牙牙根及根管的变异[J]. 中国组织工程研究, 2017, 21(16): 2521-2526. MA Haifeng, GENG Haixia, QIAN Junrong, et al. Variations in the root and root canal of permanent mandibular first molars in the Han population of southwest Shandong Province: a three-dimensional reconstruction based on cone-beam CT data using Planmeca Romexis software[J]. Chinese Journal of Tissue Engineering Research, 2017, 21(16): 2521-2526.
[12] Betancourt P, Navarro P, Muñoz G, et al. Prevalence and location of the secondary mesiobuccal canal in 1100 maxillary molars using cone beam computed tomography[J]. BMC Med Imaging, 2016, 16(1): 66.
[13] Vasundhara V, Lashkari KP. An in vitro study to find the incidence of mesiobuccal 2 canal in permanent maxillary first molars using three different methods[J]. J Conserv Dent, 2017, 20(3): 190-193.
[14] 刘文菲, 崔广, 宫琳. 上颌第一磨牙近中颊根根管系统锥形束CT影像学观察[J]. 中国实用口腔科杂志, 2014, 7(8): 479-481. LIU Wenfei, CUI Guang, GONG Lin. Observation 0f the maxillary first molar mesiobuccal root canal system by using cone beam computer tomography[J]. Chinese Journal of Practical Stomatology, 2014, 7(8): 479-481.
[15] 王岩, 裴涛, 曾红燕, 等. 锥体束CT对上颌第一磨牙近中颊根管形态的研究[J]. 口腔医学研究, 2012, 28(9): 956-958. WANG Yan, PEI Tao, ZENG Hongyan, et al. The morphological study of maxillary first molar meiobuccal canal with cone beam computer tomography[J]. Journal of Oral Science Research, 2012, 28(9): 956-958.
[16] Blattner TC, George N, Lee CC, et al. Efficacy of cone-beam computed tomography as a modality to accurately identify the presence of second mesiobuccal canals in maxillary first and second molars: a pilot study[J]. J Endod, 2010, 36(5): 867-870.
[17] 高燕, 安少锋, 凌均綮. 离体上颌磨牙近中颊根第二根管出现率的研究[J]. 中华口腔医学杂志, 2006, 4l(9): 52l-524. GAO Yan, AN Shaofeng, LING Junqi. An in vitro study on the incidence of the second mesiobuccal canal in the mesiobuccal root of the first and second maxillary molars[J]. Chinese Journal of Etomatology, 2006, 4l(9): 52l-524.
[18] 詹福良, 李莉. 浅谈根管解剖形态[J]. 中国实用口腔科杂志, 2012, 5(9): 521-526. ZHAN Fuliang, LI Li. Analysis of root canal morphology[J]. Chinese Journal of Practical Stomatology, 2012, 5(9): 521-526.
[19] Zhang R, Yang H, Yu X, et al. Use of CBCT to identify the morphology of maxillary permanent molar teeth in a Chinese subpopulation[J]. Int Endod J, 2011, 44(2): 162-169.
[20] da Silveira PF, Vizzotto MB, Liedke GS, et al. Detection of vertical root fractures by conventional radiographic examination and cone beam computed tomography-an in vitro analysis[J]. Dent Traumatol, 2013, 29(1): 41-46.
[21] Kim Y, Lee SJ, Woo J. Morphology of maxillary first and second molars analyzed by cone-beam computed tomography in a Korean population: variations in the number of roots and canals and the incidence of fusion[J]. J Endod, 2012, 38(8): 1063-1068.
[22] Ghoncheh Z, Zade BM, Kharazifard MJ. Root morphology of the maxillary first and second molars in an iranian population using cone beam computed tomography[J]. J Dent(Tehran), 2017, 14(3): 115-122.
[23] Lee JH, Kim KD, Lee JK, et a1. Mesiobuccal root canal anatomy of Korean maxillary first and second molars by cone-beam computed tomography[J]. Oral Surg, Oral Med, Oral Pathol, Oral Radiol, Endod, 2011, 111(6): 785-791.
[24] 方溢云, 林正梅, Ashroy Jhugroo. 毛里求斯人和中国珠三角地区人上颌第一磨牙近中颊根根管形态比较研究[J]. 实用口腔医学杂志, 2010, 26(6): 759-763. FANG Yiyun, LIN Zhengmei, Ashroy Jhugroo. Canal morphology of the mesiobuccal root of the maxillary first molar in people from Mauritius and Pearl River Delta Region in China[J]. J Pract Stomatol, 2010, 26(6): 759-763.
[25] 梁景平. 我国根管治疗的现状分析[J]. 中华口腔医学杂志, 2010, 45(7): 385-388.
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