镍钛根管预备器械  

Nickel-titanium instruments for root canal preparation

作　　者：葛久禹[1,2] 

机构地区：[1]南京大学医学院附属口腔医院 [2]南京市口腔医院牙体牙髓科,南京210018

出　　处：《中国实用口腔科杂志》2014年第1期2-9,共8页Chinese Journal of Practical Stomatology

基　　金：国家临床重点专科建设基金资助项目(2011);江苏省科技发展计划项目(BE2011611)

摘　　要：与手用不锈钢器械相比,镍钛机用器械具有良好的超弹性、形态记忆功能,因而被广泛运用于临床。然而镍钛机用器械的分离也给临床带来了很大的困扰。为了改善其安全性,根管预备器械不断发展创新,新型镍钛根管器械也在不断涌现。本文从镍钛器械几何形状、运动方式、机械物理性能以及根管预备混合系统4个方面介绍目前常见的以及新型镍钛器械特性。Compared with stainless instrument, NiTi rotary instrument is widely used in clinic for its excellent super elasticity and shape memory effect. However, the risk of NiTi instrument separation is a concern, which may result in an un favorable prognosis. To improve safety, novel NiTi rotary in struments are emerging. The purpose of this review is to sum marize current understanding of the geometric shapes, forms of motion, physical properties and muhiple systems of NiTi ro tary instruments.

关 键 词：镍钛机用器械 根管预备 机械性能 

分 类 号：R78[医药卫生—口腔医学]