控制记忆型镍钛锉HyFlexCM根管预备的临床效果分析.pdf

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1、腔医学杂志第41卷5期2o14年9月www．gjkqyxzz．cn·521·控制记忆型镍钛锉HyFlexCM根管预备的临床效果分析朱玉婷刘江峰黄江勇徐妍李艳利李晓星陈秉勋广州医科大学口腔医学院·附属口腔医院·口腔医学重点实验室广』JJ、1510140【摘要】目的评价控制记忆型镍钛锉HyFlexCM根管预备的临床疗效。方法选择拟行根管治疗的300颗下颌第一磨牙和第二磨牙随机分为HyFlexcM组和Pmt印e龃，分别用HyFlexcM机用镍钛锉和Protape艘进行根管预备，采用卡方检验比较2组在根管预备时间、根管预备后的疼痛反应、根管充填效果、器械分离

2、率等方面的差异。结果平均预备时间HyFlexCM组为21．7min、Pmt印e龃为22．5rain(P>0．05)；疼痛发生率HyFlexCM组为4％，Protape商l为3％(P>0．05)；根管恰填率HyF1exCM组为95．10％，Protaper~为96．18％(P>O．05)；HyFlexcM组发生1例器械分离，Protaper~jl发生6例器械分离。结论HyFlexCM同样能有效降低根管预备后疼痛的发生，也能更好地保持根管解剖的初形，明显减少器械分离的发生，从而提高了根管充填的效率和质量。[关键词】控$,Jte忆型镍钛锉HyFlexCM；

3、根管预备；根管治疗【中图分类号】R781．33【文献标志码】A【doil10．7518／gjkq．2014．05．006ClinicalevaluationofHyFlexCMinstrumentsinrootcanalpreparationZhuYuting，LiuJiangfeng，HuangJiangyong，XuYah，LiYanli，LiXiaoxing，ChenBingxun．(KeyLaboratoryofOralMedicine，SchoolandHospitalofStomatology，GuangzhouMedicalUniver

4、sity，Guangzhou510140，China)IAbstractlObjectiveThisstudyaimstoassesstheclinicaleffectsofHyFlexCMinstrumentsonrootcanalpreparation．MethodsAtota1of300mandibularfirstmolarsandsecondmolarsthatrequiredendodontictreatmentwereselectedandrandomlydividedintotwogroups，namely，theHyFlexCMan

5、dProtapergroups．TherootcanalswerepreparedwithHyFlexCMinstrumentsintheHyFlexCMgroupandwithProtaperintheProtapergroup．Therootcanalpreparationtime，incidenceofpainafterrootcanalpreparation，effectsofcanalobturation，andincidenceofinstrumentseparationwerecomparedbyusingthetest．Results

6、TheaveragerootcanalpreparationtimeintheHyFlexCMgroupwas21．7min，whereasthatintheProtapergroupwas22．5rain(P>0．05)．TheincidencerateofpostoperativepainintheHyFlexCMgroupwas4％，whereasthatintheProtapergroupwas3％fJD>0．o5)．AdequaterootcanalfillingintheHyFlexCMgroupwas95．10％，whereasthat

7、intheProtapergroupwas96．18％(P>o．05)．InstrumentseparationintheHyFlexCMgroupwas1，whereasthatintheProtapergroupwas6．ConclusionHyFlexCMinstrumentscanreducetheincidenceofpostoperativepain，aswellasmaintainasatisfactoryanatomicalshapeoftherootcanalwhilesignificantlydecreasinginstrumen

8、tseparation．Theseconditionscanimprovefillingeffectandq