不同根管长度测量法在根管治疗中的临床应用
郭保慧孙晶涛张琳（哈尔滨二四二医院黑龙江哈尔滨150066）
【中图分类号】R781.33【文献标识码】B【文章编号】1672-5085(2009)13-0014-03
【摘要】目的对比手感X线法和RootZX电测法在根管治疗中测量根管工作长度的临床应用结果，从而评价其准确性、可靠性和优越性。方法将143名患者拟做根管充填的186个根管随机分为两组，分别用不同的方法。手感X线法和RootZX电测法测定根管的工作长度，然后常规进行根管预备和根管充填，术后拍摄X线片，观察根管充填效果。结果手感X线组和RootZX电测组的恰填率分别为61.54％和82.11％（P<0.05），而超填率分别为23.08％和11.58％（P<0.05），差别均有统计学意义。结论用电测法测定根管工作长度快速、准确、充填效果好、超充率低，值得推广。
【关键词】根管治疗电测法根管充填
ApplicationvalueofInfluenceonEndodontictreatmentthroughdifferentcanallengthmeasurements.
GUOBaohui,SUNJingtao,ZHANGLin,(Haerbin242Hospital,Haerbin150066,china)
【Abstract】Objective:Tocomparethemeasuringaccuracyandtheadvantageoftheradiographiclenghthwithdentist’sestimationandtheelectronicmeasuringmethodtodeterminetherootcanallength.Method:143patientswith186teethwerepidedintotwogroups:group1withradiographiclenghthwithdentist’sestimationmeasuringmethod,group2withtheelectronicmeasuringmethodtodeterminetherootcannallength.Afterpreparingrootcanals,rootcanalswerefilledbandthenx-raypicturesweretaken.Thefillingdegree,theproperfillingandoverfillingquantitywereevaluated.Result:Thepercentageofproperfillingwas61.54%ingroup1and82.11%ingroup2,andthedifferencehasstatisticalsignificant.Theincidenceoflargequantityofoverfillingwas23.08%ingroup1and11.58%ingroup2,andthedifferencewasstatisticallysignificant.Conclusion:Withelectronicmeasuringmethodtodeterminetherootcanallengthismuchbetterandreliableonthecanalfilling.Anditcanreducetheratesoftheoverfilled.
【Keywords】EndodontictreatmentElectronicmeasuringmethodCanalfilling