电火花蚀刻镍钛根管锉HyFlex EDM的表面形态和抗疲劳折断性能
王芳芳1,2, 杨殷杰3, 侯晓玫1,

Surface microstructure and cyclic fatigue resistance of electro discharged machining nickel-titanium endodontic instrument
WANG Fang-fang1,2, YANG Yin-jie3, HOU Xiao-mei1,
3种镍钛根管锉的韧窝结构(×3 000)