CAJ | 학술논문

目的：评估两种电子根尖定位仪的准确性。方法选临床291例患者385根根管随机分为3组：传统X线测量组120根管；EAL（迷你型root-ZX根尖定位器）132根管；多功能电测根管马达（VDW电测仪）133根管，测定各根管工作长度（WL）。用ProTaper镍钛锉将根管预备到F3尺寸，选择适合F3锥度的主牙胶尖充填以保证根管充填的密闭性。结果3种测量方法之间恰充情况，传统X线测量组106根管（88.3%）；EAL组123根管（93.2%）；多功能电测根管马达组126根管（94.7%），无显著统计学差异（χ2=3.865，P=0.145）。结论两种根尖定位仪的准确性与传统X线WL测定技术有较为明显的优势，但二测量仪之间无显著差别。
목적：평고량충전자근첨정위의적준학성。방법선림상291례환자385근근관수궤분위3조：전통X선측량조120근관；EAL（미니형root-ZX근첨정위기）132근관；다공능전측근관마체（VDW전측의）133근관，측정각근관공작장도（WL）。용ProTaper얼태촤장근관예비도F3척촌，선택괄합F3추도적주아효첨충전이보증근관충전적밀폐성。결과3충측량방법지간흡충정황，전통X선측량조106근관（88.3%）；EAL조123근관（93.2%）；다공능전측근관마체조126근관（94.7%），무현저통계학차이（χ2=3.865，P=0.145）。결론량충근첨정위의적준학성여전통X선WL측정기술유교위명현적우세，단이측량의지간무현저차별。
Objective To evaluate the clinical accuracy of two electronic apex locators (EALs). Methods A total of 291 patients with 385 roots were randomized into three groups including, traditional radiographic method(120 root canals), EAL (Root ZX mini,132 root canals), and apex locating endodontic motor (VDW ,133 root canals ) for working length (WL) determination. Root canals were instrumented to a size ProTaper F 3 nickel titanium file. The obturation quality of matched tapered master cone was determined for the accuracy of WL. Results The traditional X-ray group 106 root canals (88.3%);EAL group 123 root canals (93.2%);VDW group 126 root canals (94.7%), The accuracy of three methods had statistically there was no signiifcant differences. (χ2=3.865, P=0.145). Conclusion The accuracy of the two kinds of root apex locator with traditional X-ray WL measurement technology has more obvious advantages, but there was no signiifcant difference between two measuring instrument.