A retrospective clinical analysis of endodontic treatment of maxillary first molars

Abstract

Abstract: PURPOSE: To evaluate the effect of root canal therapy (RCT) of maxillary first molars and the relevant influential factors. METHODS： A total of 170 maxillary first molars undergoing endodontic treatment were retrospectively studied. 100 molars were treated with vertical compaction technique (VCT) using warm gutta- percha under dental operating microscope(DOM),while 70 molars with traditional lateral compaction technique(LCT) under naked eyes. All patients were asked to revisit 5 years later and 5- year success rate was evaluated. Reversion 3.0.2 software package was used to analyze the data. RESULTS: The immediate high quality rates of RCT of VCT and LCT were 91% and 75.7%, respectively, which has significant difference (P<0.05). After 5 years, VCT kept high quality rate of RCT, while the high quality rate of RCT with LCT dropped from75.7% to 68.6%. The 5-year clinical success rates of RCT with VCT and LCT were 98% and 81.4%, respectively; which had significant difference (P<0.05). CONCLUSIONS: VCT has excellent clinical effect in RCT of maxillary first molars. The use of DOM can increase the detection rate of the second mesiobuccal canal (MB2).

Key words: Maxillary first molars, Second mesiobuccal canal, Root canal treatment, Dental operating microscope

CLC Number:

R781.05

ZHANG De-hui, ZHENG Yao, SUN Hai-tao.. A retrospective clinical analysis of endodontic treatment of maxillary first molars[J]. Shanghai Journal of Stomatology, 2016, 25(1): 87-90.

References

[1] Ruadle CJ. The ProTaper endodontic system: geometries, features, and guidelines for use [J]. Dent Today, 2001, 20(10): 60-67.
[2] 田慧颖, 李宇飞, 陈琛, 等. 机用镍钛器械protaper用于根管治疗的临床研究[J].牙体牙髓牙周病学杂志, 2007, 17(8): 470-473.
[3] 张成飞, 王嘉德. 第三讲根管充填的方法、问题和对策 [J].中华口腔医学杂志,2004,39(3): 254-257.　
[4] 范伟, 范兵, 陈智. 根管三维充填的研究进展 [J]. 国外医学?口腔医学分册, 2003, 30(1): 43-45.
[5] 中华口腔医学会牙体牙髓病学专业委员会. 根管治疗技术指南 [J].中华口腔医学杂志, 2014, 49(5): 272-274.
[6] 凌均棨. 根管感染控制的难点和三维根管预备现代理念 [J].华西口腔医学杂志, 2013, 31(3): 221-224.
[7] Boucher Y, Mutossiant L, Rilliard F, et al. Radiographic evaluation of the prevalence and technical quality of root canal treatment in a French subpopulation[J]. Int Endod J,2002,35(3): 229-238.
[8] 尹仕海, 杨锦波, 苏勤, 等. 1423例根管治疗的临床分析 [J].华西口腔医学杂志, 2005, 23(2):119-121.
[9] Ala?am T, Tinaz AC, Gen? O, et al. Second mesiobuccal canal detection in maxillary first molars using microscopy and uiltrasonics [J]. Aust Endod J, 2008, 34(3): 106-109.
[10] Zitzmnn NU, Krastl G, Hecker H, et al. Strategic considerations in treatment planning: deciding when to treat, extract, or replace a questionable tooth [J]. J Prosthet Dent, 2010, 104(2): 80-91.
[11] 王鹏来, 刘彬, 韩建国, 等. 上颌第一磨牙根管系统的研究 [J]. 口腔医学, 2012, 32(2): 77-79.
[12] Yoshioka T, Kikuchi I, Fukumoto Y, et al. Detection of the second mesiobuccal canal in mesiobuccal roots of maxillary molarteeth ex vivo[J]. Int Endod J, 2005, 38(2): 124-128.
[13] 谭红, 黄政, 黄定明, 等. 不同方法探查上颌第一恒磨牙根管口的研究 [J]. 牙体牙髓牙周病学杂志, 2003, 13(7): 376-378.
[14] 易飞舟, 丁蓉民. 使用手术显微镜对上颌第一磨牙近中颊侧第二根管应用解剖的研究[J]. 牙体牙髓牙周病学杂志,2004,14(2): 78-80.
[15] 张丹丹, 姬爱平, 刘洋. 上颌第一磨牙近中颊根第二根管肉眼发现率的临床研究 [J]. 实用口腔医学杂志, 2011, 27(6): 856-858.
[16] 刘蔚, 王美青. 第一磨牙牙釉质及牙本质厚度测量研究 [J]. 口腔医学研究, 2006, 22(2): 137-139.
[17] Touré B, Faye B, Kane AW, et al. Analysis of reasons for extraction of endodontically treated teeth: a prospective study [J]. J Endod, 2011, 37(11): 1512-1515.