不同根管环境对RootZX和ProPex准确性的影响研

37120101[]2009-09-28[]2009-11-05[]1977—[]Tel[phone]。、X。、、、X。RootZX3RootZX、。ProPexRootZX、RootZXProPex12（1.518109；2.116044）[]RootZXProPex2。30L43%H2O2、0.9%NaCl、2.5%NaClO、RootZXProPexLRRootZXLPProPexDLD。3%H2O2、0.9%NaCl、2.5%NaClORootZXProPexP0.05RootZXProPexP0.05±0.5mmRootZXProPexP0.05。RootZXProPex。[]RootZXProPex[]R781.05[]A[doi]10.3969/j.issn.1673-5749.2010.01.007EffectresearchofdifferentrootcanalenvironmentsontheaccuracyofRootZXandProPexHUANGLin1,NIUWei-dong2.1.OralMedicalCenter,ShenzhenLonghuaPeople′sHospital,Shenzhen518109,China;2.Dept.ofOralMedicine,StomatologicalCollege,DalianMedicalUniversity,Dalian116044,China[Abstract]ObjectiveTostudytheinfluenceofdifferentendodonticsituationsonthemeasurementaccuracyofRootZXandProPex.Methods30extractedteethwereselected,aftermeasurementoftheactualworkinglengthL,theworkinglengthofrootcanalweremeasuredusingRootZXLRandProPexLPin3%H2O2solution,0.9%NaClsolution,2.5%NaClOsolutionordryrootcanal,whichwascomparedwiththeactualworkinglengthofrootcanal.Theactualworkinglengthofrootcanalwasobtainedbythemicro-observationofrootapexDandmeansofsoftwarecalculation.ResultsInfourdifferentenvironments,therewasnostatisticallysignificantdiffer-encebetweenthemeasuringlengthusingRootZXorProPexandthereallengthofrootcanalP0.05.ButthemeasuringdeviationbetweenRootZXandProPexhadstatisticalsignificanceP＜0.05whenthesameendodonticsituationwasused.Ifthemeasurementerrorwas±0.5mm,thedifferencesbetweenthemeasurementaccurateratioofRootZXandProPexhadnostatisticalsignificanceP0.05.ConclusionTheaccuracyofmeasurementofRootZXorProPexwasnotinfluencedbyrootcanalmediaandhadnorelationtothedryormoistrootcanal.Therewasnostatisticallysignificantdifferencebetweentheaccuracyofthetwoelectronicapexlocators.[Keywords]RootZXProPexworkinglengthofrootcanalendodonticirrigation23··37120101。Fan[1]ProPexRootZX。ProPexRootZXProPexRootZXProPex。11.130X、、、。1.2KDensply、3%H2O2、0.9%NaCl、2.5%NaClO、RootZXSM-RCM-1Morita、ProPexDensplyMaillefer、0.02mm、Nititoyo。1.34cm×4cm×6cm10mm×6mm3mm×3mm。100mL0.9％NaCl2.0g、1.43gNaHPO4·H2O、0.18gKH2PO480℃2％2～8℃2h。1.42.5%NaClO2h、。、、2.5%NaClO10min。。1.5×1515KK0.02mm3L。1.62。RootZX0.50.02mm0.5mmLRRootZXProPex0.000.5mmLRProPex。73%H2O2、0.9%NaCl、2.5%NaClO、LR、LP。24h。。1.7K1/3×30D。L-DLW。1.8SPSS13.0one-wayANOVARootZXProPextRootZXProPex。22.1RootZXProPexRootZXProPex2.5%NaClOP＞0.05ProPexRootZXP0.05124··37120101。2.2RootZXProPex±0.5mmRootZXProPex93.3%90%3%H2O2RootZXProPex90%0.9%NaClRootZXProPex83.3%96.7%2.5%NaClORootZXProPex86.7%93.3%。RootZXProPexP0.05。3“”1[2]。、、、、、。RootZXMorita321、2。RootZX、、、、、。RootZX[3-7]。、。[8]。Dunlap[9]RootZX。ProPex4[10]3。ProPex。ProPex[10]。32.5%NaClO3%H2O23P0.05、RootZXProPex。[4-7]。ProPexRootZX±0.5mmRootZXProPex93.3%90%3%H2O2RootZXProPex90%0.9%NaClRootZXProPex83.3%96.7%2.5%NaClORootZXProPex86.7%93.3%。RootZXProPexP0.05。RootZXProPex、、。X。1RootZXProPexmmx±sTab1MeasurementdeviationsofRootZXandProPexunderthedifferentmeasuringcon-ditionsmmx±sRootZXProPex3%H2O20.186±0.1790.013±0.2310.9%NaCl0.214±0.2030.015±0.2182.5%NaClO0.246±0.1860.019±0.2410.161±0.1470.008±0.20125··37120101!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!。4[1]FanW,FanB,GutmannJL,etal.Evaluationoftheac-curacyofthreeelectronicapexlocatorsusingglasstubu-les[J].IntEndodJ,2006,392127-135.[2]SunadaI.Newmethodformeasuringthelengthoftherootcanal[J].JDentRes,1962,415375-387.[3],,,.RootZX[J].,2005,21156-58.[4],,.[J].,2006,15267-69.[5]JenkinsJA,WalkerWA3rd,SchindlerWG,etal.AninvitroevaluationoftheaccuracyoftheRootZXinthepresenceofvariousirrigants[J].JEndod,2001,273209-211.[6],,.RootZX[J].,2004,24119-10.[7]MearesWA,SteimanHR.Theinfluenceofsodiumhypo-chloriteirrigationontheaccuracyoftheRootZXelec-tronicapexlocator[J].JEndod,2002,288595-598.[8],,.[J].,2005,40739-40.[9]DunlapCA,RemeikisNA,BeGoleEA,etal.Aninvi-voevaluationofanelectronicapexlocatorthatusestheratiomethodinvitalandnecroticcanals[J].JEndod,1998,24148-50.[10]OzsezerE,InanU,AydinU.InvivoevaluationofPro-Pexelectronicapexlocator[J].JEndod,2007,338974-977.[6][7]。SEM/2、。。One-step2One-step。RelyXUnicemBiscem2、One-step。SEMOne-step2One-step。4[1],,,.[J].,2006,246555-558.[2]XieH,WangX,WangY,etal.Effectsofsol-gelproce-ssedsilicacoatingonbondstrengthofresincementstoglass-infiltratedaluminaceramic[J].JAdhesDent,2009,11149-55.[3]XieH,ZhangF,WuY,etal.Dentinebondstrengthandmicroleakageofflowablecomposite,compomerandglassionomercement[J].AustDentJ,2008,534325-331.[4]TayFR,FrankenbergerR,KrejciI,etal.Single-bottleadhesivesbehaveaspermeablemembranesafterpolym-erization..Invivoevidence[J].JDent,2004,328611-621.[5]PiwowarczykA,BenderR,OttlP,etal.Long-termbondbetweendual-polymerizingcementingagentsandhumanharddentaltissue[J].DentMater,2007,232211-217.[6]OliveiraSS,MarshallSJ,HabelitzS,etal.Theeffectofaself-etchingprimeronthecontinuousdemineralizationofdentin[J].EurJOralSci,2004,1124376-383.[7]CeballosL,CamejoDG,VictoriaFuentesM,etal.Micro-tensilebondstrengthoftotal-etchandself-etchingadhe-sivestocaries-affecteddentine[J].JDent2003,317469-477.29··