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口腔环境是一个pH值变化的复杂环境。口腔环境内多种成分能使正畸镍钛弓丝受腐蚀,使其机械性能和生物相容性发生变化。弓丝成分和表面氧化膜的改良可以提高其抗腐蚀抵抗性。本文就口腔环境内镍钛弓丝的腐蚀、抗腐蚀性及其机制作一综述。
The oral environment is a complex environment of pH changes. Various components in the oral environment can make orthodontic nickel titanium arch wire corrosion, so that its mechanical properties and biocompatibility changes. The improvement of the archwire composition and the surface oxide film can improve its resistance to corrosion. This article reviews the corrosion, corrosion resistance and mechanism of nickel titanium arch wire in oral environment.