机用镍钛锉根管预备的临床应用研究  

Comparison between a rotary Nikel-Titanium file and stainless-steel K-file instrumentation in root canal preparation:a clinical study

作　　者：张成飞[1] 赵宝红[1] 林琼光[1] 

机构地区：[1]北京大学口腔医学院特诊科,100081

出　　处：《现代口腔医学杂志》2002年第6期512-513,共2页Journal of Modern Stomatology

摘　　要：目的　比较机用镍钛锉与手用K型锉根管预备的临床应用。方法　将牙位相同、诊断相同 ,全身情况类似的患者按随机配对原则分入甲乙两组 ,甲组为镍钛锉预备组 ;乙组为K型锉预备组 ,每组 5 0例患者。结果　对于单根管牙齿 ,使用机用镍钛锉进行根管预备 ,所用时间与传统手用K型锉根管预备相比无显著差异。对于双根管牙及磨牙而言 ,采用机用镍钛锉进行根管预备所用时间明显少于使用传统手用K型锉根管预备。根管预备一周内 ,使用机用镍钛锉根管预备与传统手用K型锉根管预备术后反应无显著差异。结论　与传统手用K型锉预备根管相比 。Objective To compare the results of root canal preparation using rotary nickel-titanium files to the results obtained using traditional stainless-steel K files by hand clinically.Methods 100 adult patients who were diagnosed to receive root canal treatment were divided into two groups based on the randomly-paired principle.There were 50 patients in each group.In group A,root canals were instrumented with rotary Ni-Ti files in crown-down mode,when 0.04 taper files and 0.06 taper files were used alternatively until 40# 0.04 taper files instrumentation was finished.In group B,root canals were instrumented with traditional stainless-steel K files to 40# by hand.Instrumentation time of each canal was recorded.Results For single-root teeth,the instrumentation time was not significantly different between the two groups.For the double-root teeth and molars,instrumentation time in group A was significantly less than group B.Conclusion Compared with instrumentation by hand with traditional stainless-steel K files,instrumentation with rotary Ni-Ti files is less time-consuming and more convenient.

关 键 词：机用镍钛锉 根管预备 临床应用 K型锉 

分 类 号：R781.05[医药卫生—口腔医学]