两种根管长度测量仪与数字化X线测量根管工作长度的准确性比较  

Comparison of the accuracy for root canal working length measuring between two different root canal length measuring instruments and digital X-ray

作　　者：徐梅[1] 董志坚[1] 查建鑫 

机构地区：[1]唐山市协和医院,河北唐山063000

出　　处：《现代医学》2016年第3期295-298,共4页Modern Medical Journal

基　　金：唐山市科学技术研究与发展指导计划项目(12130227b)

摘　　要：目的:比较两种根管长度测量仪与数字化X线测量根管工作长度的准确性。方法:选取2013年3月至2015年3月于我院治疗的75例患者,共180根管分成3组,分别为X线组、PropexⅡ组及Raypex 5组,必兰麻局麻下,常规去腐,开髓,揭髓顶,拔髓,并建立起直线入路。分别使用X线、PropexⅡ、Raypex 5对工作长度进行确定,工作长度准确性依据对应主尖(Pro Taper F3)的充填质量完成评估。X线片根尖同主尖距离使用Vix Win Pro软件进行计算和统计分析。结果:X线组、PropexⅡ组及Raypex 5组的根管充填成功率为76.7%、81.7%和78.3%,组间比较差异无统计学意义(P>0.05)。各组主尖同X线片根尖距离的比较,差异均无统计学意义(P>0.05)。同类牙齿测量值的各组间对比,差异均无统计学意义(P>0.05);同组不同类牙齿的测量值对比,差异均无统计学意义(P>0.05)。结论:Raypex 5和PropexⅡ型根管长度测量仪的临床效果与传统X线相似,且可避免不必要的电离辐射。Objective： To compare the accuracy for root canal working length measuring between two different root canal length measuring instruments and digital X-ray. Methods： Seventy-five patients treated in our hospital from March 2014 to March 2015 were selected,and 180 root canals in total were divided into 3 groups,i. e.,X ray group,PropexⅡgroup and Raypex 5 group. Patients were given Lidocaine for local anesthesia,the carious tissue was removed and filling body was repaired. High speed dome was used to drill marrow for exposing the top and establishing a linear approach. The X ray,Propex Ⅱ and Raypex 5 were used to determine the working length respectively and the accuracy of working length was assessed according to the filling quality of related main tip（ Pro Taper F3）. The distance between root tip of X ray and main tip was calculated and analyzed by Vix Win Pro.Results： The success rates for root canal filling of X ray group,PropexⅡgroup and Raypex 5 group were 76. 7% 、81. 7% and 78. 3% respectively with no statistically significant difference between the groups（ P〉0. 05）. The difference of distance between root tip of all groups and main tip was not statistically significant（ P〉0. 05）. The difference of measurements for the same type of teeth in different groups was not statistically significant（ P〉0. 05）.The difference of measurements for different types of teeth in the same group was not statistically significant（ P〉0. 05）. Conclusion： The clinical effect of Raypex 5 and Propex Ⅱ root canal length measuring instruments for working length measuring are similar to that of conventional X ray,but the use of Raypex 5 and PropexⅡroot canal length measuring instruments can avoid unnecessary ionizing radiation.

关 键 词：工作长度 根管长度测量仪 根管治疗 生理性根尖孔 

分 类 号：R78[医药卫生—口腔医学]