不同根管充填方法的根尖微渗漏比较研究被引量：11

A comparative study of apical sealing ability of different root canal obturation techniques

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摘要目的比较采用2种根管封闭剂,3种不同充填技术的根尖封闭情况,为临床应用提供依据。方法选取新近拔除142颗单根管前牙采用Pro Taper机动镍钛锉系统冠向下法根管预备至F2,随即分为6个实验组(每组20颗牙)和2个对照组(每组5颗牙),采用iRoot SP与AH-Plus两种糊剂结合单尖法,热牙胶垂直加压法和冷侧压法进行根管充填,即单尖iRoot SP组(A组),热牙胶iRoot SP组(B组),冷侧压iRoot SP组(C组),单尖AH-Plus组(D组),热牙胶AH-Plus组(E组),冷侧压AH-Plus组(F组),阳性对照组(G组),阴性对照组(H组),采用染料渗透法观察根尖微渗漏情况。剩余牙齿随机分组充填后扫描电镜观察牙根横断面情况。结果各组间比较B组微渗漏值最小,B、E两组显著小于A、C、D、F组(P<0.05),B组微渗漏值小于E组,但是无显著性差别(P>0.05)。扫描电镜下观察iRoot SP与根管壁结合情况优于AH-Plus。结论连续波热牙胶垂直加压法优于其他根管充填方法,iRoot SP与根管壁的结合更好。 Objective To investigate the effect of different root canal obturation techniques on apical sealing in single root canals. Methods A total of 142 recently extracted single-rooted teeth were randomly divided into 8 groups,including single point iRoot SP group（ group A）,warm gutta percha iRoot SP group（ group B）,cold gutta percha iRoot SP group（ group C）,single point AH-Plus group（ group D）,warm gutta percha AH-Plus group（ group E）,cold gutta percha AH-Plus group（ group F）,positive control group（ group G） and negative control group（ group H）. Apical sealing ability of six groups was evaluated with methylene blue staining and scanning electron microscopy（ SEM）. Results The depth of dye penetration into the root in group B and group E were significantly lower than that in group A,C,D and F（ P〈0. 05）. The depth of penetration in group B was lower than group E,but there was no significant difference（ P〈0. 05）. The SEM showed that the width between iRoot SP and dentine was smaller than AH-Plus. Conclusion In root canal treatment,warm gutta percha condensation technology can achieve better sealing effect,and the apical sealing ability of iRoot SP was better than that of AH-Plus.

作者刘昭娜路丽郭立华朱 章晓君 LIU Zhao-na;LU Li;GUO Li-hua;ZHU Jie;ZHANG Xiao-jun(Department of Stomatology,Beijing Longfu Hospital,Beijing 100010,China)

机构地区北京市隆福医院口腔科中国中医科学院西苑医院口腔科北京市隆福医院科教科

出处《北京口腔医学》 CAS 2018年第4期228-231,共4页 Beijing Journal of Stomatology

关键词根管充填根管封闭剂微渗漏扫描电镜 Root canal obturation Root canal scaler Micro leakage SEM

分类号 R781.05 [医药卫生—口腔医学]

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参考文献3

1王楚瑜,薛明.单尖法根管充填[J].中国实用口腔科杂志,2015,8(11):645-648. 被引量：10
2陈亮,韩冰,王祖华.两种根管封闭剂对椭圆形根管单尖法充填效果的比较[J].牙体牙髓牙周病学杂志,2016,26(10):623-625. 被引量：15
3李秀丽,杨玥,侯本祥,张琛.4种根管封闭剂根尖封闭效果的体外实验研究[J].北京口腔医学,2014,22(4):200-203. 被引量：22

二级参考文献60

1Natera M, Pileggi R, Nair U. A comparison of two gutta-percha obturation techniques to replicate canal irregularities in a split-tooth model. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2011,112 (5) : e29-e3g.
2Ingle JI. A new paradigm for filling and sealing root canals. Compend Contin Educ Dent, 1995,16(3):306, 308, 310, 322.
3Cheung GS, Yang J, Fan B. Morphometric study of the apical anatomy of C-shaped root canal systems in mandibular second molars. Int Endod J, 2007,40(4) :239-246.
4Stratul SI, Didilescu A, Grigorie M, et al. How accurate replicates the Thermafil System the morphology of the apical endodontic space? An ex vivo study. Rom J Morphol Embryol, 2011,52 (1) :145-151.
5Rechenberg DK, Thurnheer T, Zehnder M. Potential systematic error in laboratory experiments on microbial leakage through filled root canals: an experimental study. Int Endod J, 2011,44(9) :827-835.
6De-Deus G, Coutinho T, Reis C, et al. Polyrnicrobial leakage of four root canal sealers at two different thicknesses. J Endod, 2006, 32 (10) :998-1001.
7Hirai VH, Da SNU, Westphalen VP, et al. Comparative analysis of leakage in root canal fillings performed with gutta-percha and Resilon cones with AH Plus and Epiphany sealers. Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2010,109 (2) : 131-135.
8Kumar NS, Palanivelu A, Narayanan LL. Evaluation of the apical sealing ability and adaptation to the dentin of two resin-based Sealers : An in vitro study. J Conserv Dent, 2013,16 (5) :449-453.
9Shantiaee Y, Maziar F, Dianat O, et al. Comparing microleakage in root canals obturated with nanosilver coated gutta-percha to standard gutta-percha by two different methods. Iran Endod J, 2011,6 (4): 140-145.
10Neelakantan P, Subbarao C, Subbarao CV. Comparative evaluation of modified canal staining and clearing technique, cone-beam computed tomography, peripheral quantitative computed tomography, spiral computed tomography, and plain and contrast medium-enhanced digital radiography in studying root canal morphology. J Endod, 2010,36(9) : 1547-1551.