| 3 | 1 | 49 |
| 下载次数 | 被引频次 | 阅读次数 |
目的:比较4种根管封闭剂的体外根尖封闭能力,为临床医师选择应用提供参考。方法:选取78颗单根管离体牙,采用机用ProTaper镍钛器械根管预备后随机分为A、B、C、D 4个实验组(每组18颗牙)和2个对照组(每组3颗牙)。A组牙胶尖/Cortisomol封闭剂、B组牙胶尖/AH-plus封闭剂、C组牙胶尖/Roek-Seal封闭剂、D组Resilon/RealSeal SE封闭剂。E组为阳性对照组、F为阴性对照组,各组均使用冷侧压方法进行根管充填。将实验组牙齿(每组10颗)及对照组牙齿进行染色微渗漏实验;实验组牙齿(每组8颗),扫描电镜下观察封闭剂与根管壁结合情况。结果:A组染料渗入长度(0.94±0.21)mm,高于其余三组[B组(0.65±0.23)mm、C组(0.56±0.15)mm,D组(0.45±0.15)mm)](P<0.05)。扫描电镜显示各组根管封闭剂与根管壁形成的最大缝隙宽度比较,差异有统计学意义(P<0.05)。A组最大缝隙宽度最大(28.73±7.42)μm,D组次之(4.93±0.89)μm,B组(0.89±0.47)μm、C组(0.86±0.43)μm最小。结论:树脂类根管封闭剂根尖封闭性能明显优于氧化锌类封闭剂,不同树脂类根管封闭剂则各有优势。
Abstract：Objective:To compare the apical sealing ability of 4 kinds of root canal sealers in vitro, andprovide reference for clinicians.Methods: 78 teeth with single root canal were selected randomly divided into 4experimental groups of A, B, C and D(18 teeth per group) and 2 control groups(3 teeth per group). Group A:gutta-percha/ Cortisomol; Group B: gutta-percha/ AH-plus; Group C: gutta-percha/ RoekSeal; Group D:Resilon/ RealSeal SE. Group E was positive control group, and Group F was negative control group. And eachgroup adopted cold laterally compacted Gutta-Percha for root-canal filling. Dye leakage test was performed in theteeth of the experimental groups( 10 teeth in each group) and the control groups. And the teeth of theexperimental groups(8 teeth in each group) were examined under the scanning electronic microscope to see thebonding of sealer and root dentin.Results: The dye of Group A(0.94±0.21)mm infiltrated more deeply than theother three groups [Group B(0.65±0.23) mm, Group C(0.56±0.15) mm, Group D(0.45±0.15mm)(P<0. 05)]. The scanning electronic microscope showed that there were statistical differences of the widest widthbetween sealer and dentin among the groups(P<0.05). The gap in Group A(28.73±7.42) μm was the widest,followed by Group D(4.93±0.89) μm, Group B(0.89±0.47) μm and the thinnest Group C(0.86±0.43) μm.Conclusion: The sealing capability of resinae sealers are significant better than the zinc oxide sealers. Differentkinds of resinae sealers have their advantages.
[1]Bouillaguet S,Shaw L,Barthelemy J,et al.Long-termsealing ability of Pulp Canal Sealer,AH-Plus,Gutta Flowand Epiphany[J].Int Endod J,2008,41(3):219-226.
[2]Lucena-Martin C,Ferrer-Luque CM,Gonzalez-RodriguezMP,et al.A comparative study of apical leakage ofEndomethasone,Top Seal,and Roeko Seal sealer cements[J].J Endod,2002,28(6):423-126.
[3]Lea CS,Apiceiia MJ,Mnes P,et al.Comparison of theobturation denstity of cold lateral compaction versus warmvertical compaction using the continuous wave ofcondensation technique[J].J Endod,2005,31(1):372-391.
[4]De-Deus G,Reis C,Di Giorgi K,et al.Interfacialadaptation of the Epiphany self-adhesive sealer to rootdentin[J].Oral Surg Oral Med Oral Pathol Oral RadiolEndod,2011,111(3):381-386.
[5]Shantiaee Y,Maziar F,Dianat O,et al.Comparingmicroleakage in root canals obturated with nanosilver coatedgutta-percha to standard gutta-percha by two differentmethods[J].Iran Endod J,2011,6(4):140-145.
[6]Ersahan S,Aydin C.Solubility and apical sealingcharacteristics of a new calcium silicate-based root canalsealer in comparison to calcium hydroxide-,methacrylateresin-and epoxy resin-based sealers[J].Acta OdontolScand,2013,71(3-4):857-862.
[7]Chandra SS,Shankar P,Indira R.Depth of penetration offour resin sealers into radicular dentinal tubules:aconfocal microscopic study[J].J Endod,2012,38(10):1412-1416.
[8]Singh CV,Rao SA,Chandrashekar V.An in vitrocomparison of penetration depth of two root canal sealers:An SEM study[J].J Conserv Dent,2012,15(3):261-264.
[9]Martha GB,RebeccaM,Jeremy S,et al.Comparison ofsealobturation techniques using a polydimethylsioxane-based root eanal sealer[J].J Endod,2006,32(12):1188-1190.
[10]Sevimay S,Dalat D.Evaluation of penetration andadaptation of three different sealers-a SEM study[J].JOral Rehabi,2003,30(9):951-955.
[11]李俊亮,葛久禹,危薇,等.5种根管充填糊剂的根管封闭能力的比较[J].口腔医学研究,2011,27(8):716-718.
[12]Iletic I,Prpic-Mehicic C,Marsan T,et al.Bacterial andfungalmicroleakage of AH26 and AH Plus root canalsealers[J].J Endod,2002,35(5):428-432.
[13]Wu MK,Tigos E,Wesselink PR.An 18-month longitudinalstudy on a new silicon-based sealer,RSA RoekoSeal:aleakage study in vitro[J].Oral Surg Oral Med OralPathol Oral Radiol Endod,2002,94(4):499-502.
[14]Babb BR,Loushine RJ,Bryan TE,et al.Bonding of self-adhesive(self-etching)root canal sealers to radiculardentin[J].J Endod,2009,35(4):578-582.
[15]凌均楽,林正梅,房俊艳,等.树脂牙本质粘接在根管充填治疗中的应用和展望[J].华西口腔医学杂志,2011,29(l):l-4.
[16]Resende L M,Rached-Junior F J,Versiani M A,et al.Acomparative study of physicochemical properties of AHPlus,Epiphany,and Epiphany SE root canal sealers[J].Int Endod J,2009,42(9):785-793.
基本信息:
中图分类号:R781.05
引用信息:
[1]罗荣,陈广盛.不同根管封闭剂根尖封闭性能的体外研究[J].广州医科大学学报,2014,42(04):1-4.
2014-08-15
2014-08-15