2种电子根尖定位仪工作长度测定的临床准确性探讨  

作　　者：陈万军[1] 张咏梅[1] 段丽君[1] 李洪彬[1] 刘祖勇[1] 蒲凤萍[1] 

机构地区：[1]四川省射洪县人民医院,四川629200

出　　处：《当代医学》2014年第11期81-83,共3页Contemporary Medicine

摘　　要：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;EA(L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。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 significant differences. （χ^2 = 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 significant difference between two measuring instrument.

关 键 词：根尖定位仪 根尖狭窄部 X线照片 根管治疗 工作长度 测量 

分 类 号：R781.05[医药卫生—口腔医学]