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1、不同充填体系根管充填后纤维桩修复的根尖封闭能力比较口腔颌面修复学杂志2011年3月第12卷第2期?论着?不同充填体系根管充填后纤维桩修复的根尖封闭能力比较周静冯云枝【摘要】目的:比较不同根管充填体系进行根管充填后行纤维桩修复的牙体根尖微渗漏情况.方法:收集32颗下颌第一前磨牙,截冠,拔髓,随机分成3组(GP组,R/E组,F组,13=10),根管预备后,分别采用牙胶+AH—plus,Resilon/Epiphany,Fibrefill充填根管并行即刻桩道预备和粘固纤维桩;印度墨水染色并透明处理后显微镜下测定根尖微渗漏的长度并统计学分析.另外
2、两颗做为阳性对照.结果:GP组显示出最高渗漏发生率(100%),F组最低(60%);GP组的渗漏长度明显高于R/E组(P=0.002)~HF组(P=0.001),R/E组与F组之问无显着性差异(尸=0.879).结论:Resilon/Epiphany系统和Fibrefill系统对于根管治疗并纤维桩修复的牙体较牙胶有更好的根尖封闭性能,二者之间差异无显着性.关键词:微渗漏;新型粘接型根管充填系统;纤维桩[中国图书分类号】R781.05[文献标识码]A[文章编号]1009—3761(2011)02—0084—04Acomparisonofse
3、alingabilityofendodontictreatedandpostrestoredteethobturatedwithdifferentobturationsystemZHOUJing,FENGYun-zhi.fChangshaStomatologicalHospital,Hunan41000~ChinaJ[Abstract]Objective:Toinvestigatethemicroleakageofendodontictreatedandpostrestoredteethusingdifferentobtu—rations
4、ystem.Methods:Asampleof32humanmandibularfirstpremolarswascollectedandrandomlyassignedtothreegroups(n=IO/group),theteethwerepreparedandobturatedwithgutta—percha+AH—plus,Resilon/EpiphanyandFibrefill,thenpostspacewaspreparedimmediatelyandfiberpostswerecemented.Allthespecimen
5、swerecoloredwithIndiainkandcleared,andthentheleakagelengthweremeasuredundermicroscope.Results:Thepercentageofleakageteethshowedhighest(100%)inthegutta—perchagroup,whereaslowest(70%)intheFibrefillgroup.Furthermore,thelengthofleakageinthegutta—perchagroupshowedlongersignifi
6、cantlythanResilongroupfP0.002)andFibrefillgroup(P0.001),however.thereisnostatisticaldifferencebetweenResilongroupandFibrefillgroupfP….0.879).Conclusion:Resilon/EpiphanyandFibrefillobturationsystemhavepreferablesealingabilitytogutta?perchaobturationsystemonendodonticvexeda
7、ndpostrestoredteeth,whilethereisnosignificantdifferencebetweenthem.Keywords:microleakge;Resilon/Epiphany;fiberpost桩核冠修复须建立在完善的根管治疗的基础上,完善的根管封闭性是桩核冠修复成功的先决条件.本实验对新型粘接型根管充填材料,根管充填系统(Resflon-Epiphany,R/E),Fibrefill充填修复系统(以下简称F)及传统牙胶尖(Gutta—percha,GP)充填的根管治疗并纤维桩修复的牙体根尖微渗漏进行比较
8、.周静长沙市口腔医院医师湖南410000冯云枝通讯作者中南大学湘雅二医院口腔中心副主任教授湖南410000?84?1.材料与方法1.1实验材料牙胶尖(柳苑牌,达雅鼎,北京),根管封闭?~U(A