不同冲洗(气)条件对机用镍钛锉预备能力的影响  

The effects of air,vapour and water rinse on the working efficiency of rotary nickel titanium instruments for root canal preparation

作　　者：孙一丹[1,2] 李岩峰 孙小雪[3] 柴光全[1] 刘坦然 胡品[1] 杨椿浩[1] 施婷婷 SUN Yidan;LI Yanfeng;SUN Xiaoxue;CHAI Guangquan;LIU Tanran;HU Pin;YANG Chunhao;SHI Tingting(100048 Beijing,Department of Stomatology,First Affiliated Hospital of PLA General Hospita,China;Brain Science Department,Hospital of Liaoning Armed Police Force,Shenyang)

机构地区：[1]解放军总医院第一附属医院口腔科,北京100048 [2]中国航天科工集团七三一医院口腔科 [3]武警辽宁总队医院脑系科

出　　处：《实用口腔医学杂志》2018年第4期472-476,共5页Journal of Practical Stomatology

基　　金：首都临床特色应用研究与成果推广项目(编号：Z17110000-1017154)

摘　　要：目的:比较4种连续冲洗(气)法条件下机用镍钛锉预备根管的效率。方法:建立机用镍钛锉折断的控力预备模型,使用机用Pro Taper Universal(PTU)F1型锉,记录干钻、干气、水气与水流4种不同冲洗(气)条件下每1支F1预备根管数量和预备1个根管的提拉次数。SPSS 21.0统计分析。结果:每1个F1预备根管数(x珋±s)为:干钻组3.80±2.24;干气组3.77±1.73;水气组5.73±3.00;水流组7.71±2.07。1个F1预备1个根管的平均提拉次数(x珋±s)分别为:干钻组22.74±8.23;干气组20.43±3.90;水气组14.83±1.90;水流组14.65±2.56。结论:水流连续冲洗法预备根管数量更多且效率更快。Objective： To compare the effects of air,vapour and water rinse on the working efficiency of rotary nikel tianium instrument for root canal preparation. Methods： Fixed resin module and the preparation of rotary Nickel-Titanium instrument were used in a transparent root canal model with PTU F1 for the canal preparation. The instrumentation was aided with nothing,dry air,vapour and water rinse respectively,the efficiency of the 4 groups were compared by prapared cannal number（ PCN） of each F1 till broke and pullpush times（ PPT） of F1 for each cannal preparation. SPSS 21. 0 was used for statistical analysis. Results： PCN in group dry,dry air,vapour and water rinse was 3. 80 ± 2. 24,3. 77 ± 1. 73,5. 73 ± 3. 00 and 7. 71 ± 2. 07 respectively; PPT was 22. 74 ± 8. 23,20. 43 ±3. 90,14. 83 ± 1. 90 and 14. 65 ± 2. 56 respectively. Conclusion： Continuous water irrigation is more effective than dry,dry air and vapoure in the reinforcement of the instrumentation of PTU F1 for tooth canal preparation.

关 键 词：根管预备 机用镍钛锉 冲洗法 模拟根管 器械分离 

分 类 号：R781.05[医药卫生—口腔医学]