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本文对三种正畸用形状记忆合金镍-钛丝(Tomy L&HTitan,3M Ortho FormIII,Csds Ormco Damon Cuniti)的结构形貌进行了对比分析。结果表明,Tomy L&HTitan镍-钛丝具有和3MOrtho FormIII,Csds Ormco Damon Cuniti镍-钛丝明显不同的表面形貌结构,其表面呈现规整的微纳相间的沟槽结构。这种特有的沟槽结构使Tomy L&HTitan镍-钛丝表现出不同于其它两种镍-钛丝的很强的疏水性能。此外,其横截面的微观结构也同样呈现其它镍-钛丝所没有的、许多纵横交错的沟壑结构。
In this paper, the morphologies of three kinds of Ortho FormIII and Csds Ormco Damon Cuniti were compared and analyzed. The results show that the Tomy L & HTitan nickel-titanium wire has obviously different surface topography from that of 3MOrtho Form III and Csds Ormco Damon Cuniti nickel-titanium wire, and the surface of the nickel-titanium wire presents a regular groove structure with micro-nano interphase. This unique trench structure allows the Tomy L & HTitan nickel-titanium wire to exhibit a strong hydrophobic behavior unlike the other two nickel-titanium wires. In addition, the microstructure of the cross-section of the same also presents other nickel - titanium wire does not have many criss-cross the structure of gullies.