下颌第一前磨牙C形牙根根面沟及根管分型的CBCT研究

doi:10.13701/j.cnki.kqyxyj.2020.09.008

口腔医学研究 ›› 2020, Vol. 36 ›› Issue (9): 830-834.DOI: 10.13701/j.cnki.kqyxyj.2020.09.008

下颌第一前磨牙C形牙根根面沟及根管分型的CBCT研究

杨绿丽^1,2, 沈斯特^1,2, 陈晓玲^1,2, 林垚^1,2*

1.厦门医学院附属口腔医院福建厦门 361000;
2.厦门市口腔疾病诊疗重点实验室福建厦门 361000

收稿日期:2020-03-23 出版日期:2020-09-28 发布日期:2020-09-15
通讯作者: *林垚,E-mail: linyaoyao727@126.com
作者简介:杨绿丽(1977~),女,福建人,学士,主治医师,主要从事口腔颌面医学影像学相关研究。
基金资助:
湖北省口腔基础医学重点实验室-省部共建国家重点实验室培育基地开放研究基金(编号:201802);厦门市医疗卫生科技计划项目(编号:3502Z20199086);厦门医学院校级课题(编号:K2016-40)

CBCT Study of Radicular Grooves and Root Canal Morphology of Mandibular First Premolars with C-shaped Roots

YANG Lvli^1,2, SHEN Site^1,2, CHEN Xiaoling^1,2, LIN Yao^1,2*

1. Stomatological Hospital of Xiamen Medical College, Xiamen 361000, China;
2. Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen 361000, China

Received:2020-03-23 Online:2020-09-28 Published:2020-09-15

摘要/Abstract

摘要： 目的: 采用CBCT扫描法,分析下颌第一前磨牙C形牙根根面沟及根管构型。方法: 随机从600例患者的CBCT影像资料中,选取变异的下颌第一前磨牙(至少一侧为C形牙根)共130个,分析记录其根面沟分布位置和数量、根面沟最凹陷处C形根管横截面构型及根管对称性等情况。结果: C形根管发生率为8.9%。107例具有C形根管特征的牙根表面均有纵向根面沟,分布在根中1/3处和根尖1/3处分别为86.9%和12.1%。根面沟以单沟近舌沟为主(89.7%),其次是单沟舌沟(10.3%),根面沟凹陷最深处根管构型以C3型分布最多(71.0%)。C形根管对称率为64.6%,双侧均为C型且根管构型一致者占83.3%。结论: 下颌第一前磨牙根管中下段形态复杂,C3型根管发生率及根管对称率均较高,因而临床诊治需避开薄弱区,避免遗漏根管,治疗时可适当参考对侧牙。

关键词: 下颌第一前磨牙, CBCT, C形根管, 根面沟

Abstract: Objective: To investigate the radicular grooves and root canal morphology in mandibular first premolars that exhibit a C-shaped root using cone-beam computed tomography (CBCT). Methods: CBCT images of 65 patients (130 mandibular first premolars) with C-shaped roots from a sample of 600 patients were selected. The location, number of the radicular grooves, configuration, and symmetry of bilateral canal classification were analyzed. Results: The occurrence rate of C-shaped roots canal was 8.9%. All of 107 C-shaped root had radicular grooves, most of which (89.7%) were located at the mesiolingual surface of the root as a single groove. 93 of the grooves (86.9%) located in the middle third, followed by the apical third (12.1%). The incidence of type C3 of root canal systems at the deepest part of the radicular grooves was 71.0%, while 64.6% of C-shaped mandibular first premolar had bilateral canal symmetry. Conclusion: The mandibular first premolars have a high prevalence of canal variation such as C-type canal system. Understanding the anatomic features of the radicular grooves and the internal root canal system is essential for successful endodontic treatment.

Key words: mandibular first premolar, cone-beam computed tomography, C-shaped canal, radicular groove

杨绿丽, 沈斯特, 陈晓玲, 林垚. 下颌第一前磨牙C形牙根根面沟及根管分型的CBCT研究[J]. 口腔医学研究, 2020, 36(9): 830-834.

YANG Lvli, SHEN Site, CHEN Xiaoling, LIN Yao. CBCT Study of Radicular Grooves and Root Canal Morphology of Mandibular First Premolars with C-shaped Roots[J]. Journal of Oral Science Research, 2020, 36(9): 830-834.

参考文献

[1] 范兵,边专,樊明文.牙体牙髓临床治疗Ⅰ:C形根管的形态、识别和治疗[J].中华口腔医学杂志,2006,41(2):118-120.
[2] Srivastava S, Gaikwad RN, Alsalhi N, et al. Cone-beam computed tomographic analysis of C-shaped canals and radicular grooves in mandibular premolars: prevalence and related factors [J]. J Contemp Dent Pract, 2019, 20(11):1350-1354.
[3] Melton DC, Krell KV, Fuller MW. Anatomical and histological features of C-shaped canals in mandibular second molars [J]. J Endodon, 1991, 17(8):384-388.
[4] Fan B, Cheung GS, Fan M, et al. C-shaped canal system in mandibular second molars: part Ⅰ-anatomical features [J]. J Endod, 2004, 30(12): 899-903.
[5] Gao Y,Fan B,Gary S,et al. C-shaped canal system in mandibular second molars Part IV:3-D morphological analysis and transverse measurement [J]. J Endod, 2006, 32(11): 1062-1065.
[6] Martins JNR, Francisco H, Ordinola-Zapata R. Prevalence of C-shaped configurations in the mandibular first and second premolars: A Cone-beam computed tomographic in vivo study [J]. J Endod, 2017, 43(6):890-895.
[7] Singh S, Pawar M. Root canal morphology of South asian Indian mandibular premolar teeth [J]. J Endod, 2014, 40(9):1338-1341.
[8] Parekh V, Shah N, Joshi H. Root canal morphology and variations of mandibular premolars by clearing technique :an in vitro study [J]. J Contemp Dent Pract, 2011, 12(4): 318-321.
[9] Kazemipoor M, Poorkheradmand M, Rezaeian M, et al. Evaluation by CBCT of root and canal morphology in mandibular premolars in an Iranian population [J]. Chin J Dent Res, 2015, 18(3):191-196.
[10] Park JB, Kim N, Park S, et al. Evaluation of root anatomy of permanent mandibular premolars and molars in a Korean population with cone-beam tomography [J]. Eur J Dent, 2013,7(1): 94-101.
[11] Fan B, Yang J, Gutmann JL, et a1. Root canal systems in mandibular first premolars with C-shaped root configurations. Part I:Microcomputed tomography mapping of the radicular groove and associated root canal cross-sections [J]. J Endod, 2008, 34(11): 1337-1341.
[12] Lu TY, Yang SF, Pai SF. Complicated root canal morphology of mandibular first premolar in a Chinese population using the cross section method [J]. J Endod, 2006,32(10): 932-936.
[13] Kaya Büyükbayram I, Sübay RK, Çolakolu G, et al. Investigation using cone beam computed tomography analysis, of radicular grooves and canal configurations of mandibular premolars in a Turkish subpopulation [J]. Arch Oral Biol, 2019, 107:104517.
[14] 郭静,梁学萍. 新疆维吾尔族成人下颌第一前磨牙根管的形态分析[J].口腔医学研究,2016,32(1):59-62.
[15] Gu Y, Zhang Y, Liao Z. Root and canal morphology of mandibular first premolars with radicular grooves [J]. Arch Oral Biol, 2013, 58(11):1609-1617.
[16] 贾智,孟媛媛,王丽君,等.下颌第一前磨牙根管形态及牙根变异的锥形束CT研究[J].医学研究生学报,2017,30(9):948-952.
[17] Huang YD,Wu J, Sheu RJ, et al. Evaluation of the root and root canal systems of mandibular first premolars in northern Taiwanese patients using cone-beam computed tomography [J]. J Formos Med Assoc, 2015, 114(11):1129-1134.
[18] 戴德华, 陈军霞, 魏薇,等.下颌前磨牙根管形态的锥形束CT研究[J].牙体牙髓牙周病学杂志,2016,26(5):301-305.

下颌第一前磨牙C形牙根根面沟及根管分型的CBCT研究

CBCT Study of Radicular Grooves and Root Canal Morphology of Mandibular First Premolars with C-shaped Roots

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