两种后牙根管预备方法的临床效果比较  

Comparison of engine-driven rotary nickel-titanium file and stainless steel hand K-file in posterior teeth’s root canal preparation

作　　者：曹筝[1] 盛列平[1] 赵其荣[1] 

机构地区：[1]浙江大学医学院附属邵逸夫医院牙科,310016

出　　处：《实用口腔医学杂志》2004年第5期639-642,共4页Journal of Practical Stomatology

摘　　要：目的 :评估 2种后牙根管预备方法的临床效果。方法 :采用机用镍钛扩大锉 (ProFile)和手用不锈钢扩大锉 (K file)扩大后牙根管 ,并对 2组病例术后疼痛以及充填情况加以比较。结果 :发现机用镍钛扩大锉扩大后牙根管 ,具有去除根管感染物质彻底 ,根管形态保持良好 ,速度快 ,术后疼痛率较低的优点 ,但易出现断针。而手用不锈钢扩大锉扩大后牙根管速度较慢 ,术后疼痛率略高 ,但不易出现断针 ,操作上容易掌握。结论 :2种后牙根管方法都有优缺点 ,可结合起来使用。Objective: To compare the effects of engine-driven rotar y nickel-titanium(ni-ti) file and stainless steel hand K-file (ss-K-file) in posterior teeth’s root canal preparation. Methods: 118 root c anals of 45 cases were instrumented with ni-ti file (ProFile)by crow-down te chnique and 127 root canals of 49 cases were treated with ss-K-file by step- back technique respectively. The incidence of pain after preparation and the res ults of obturation were observed. Results:Total pain incidence i n ni-ti file preparation group and in ss-K-file group was 20.00% and 46.94% respectively (P<0.01). The obturation of canals in the 2 goups was similar . The incidence of file break in the two groups was 4.23% and 0.00% respective ly.Conclusion: Two techniques have their goodness and shortcomin gs, application of the two methods in combination is suggested.

关 键 词：根管治疗 根管制备 镍钛扩大锉 疼痛 根管充填 

分 类 号：R781.05[医药卫生—口腔医学]