不同氟浓度人工唾液对3种牙用铸造合金表面形貌的影响
The effect of fluoride on dental alloys in different concentrations of fluoride artificial saliva
作者：程玮 于海利 林雪芬 韩晓鹏 刘利苹 丁婷婷 汲平
Author：Cheng Wei1，2, Yu Haili3, Lin Xuefen1, Han Xiaopeng3, Liu Liping3, Ding Tingting1, Ji Ping1
收稿日期：2012-02-25 年卷（期）页码：2012,30(1):18-18-21
期刊名称：华西口腔医学杂志
Journal Name：West China Journal of Stomatology
关键字：氟,耐腐蚀性,钴铬合金,纯钛,表面粗糙度,
Key words：fluoride,corrosion resistance,cobalt-chromium alloy,pure titanium,surface roughness,
基金项目：
中文摘要
目的研究钴铬合金、纯钛及高钴铬钼合金浸泡于不同氟浓度人工唾液发生腐蚀后表面形貌的改变，分析金属的耐腐蚀性。方法将3种金属试件打磨后浸泡于不同氟浓度（0%、0.05%、0.2%）人工唾液中，（37.0±1.0）℃浸泡3周，测量浸泡前后表面粗糙度并观察表面形貌。结果浸泡后金属表面粗糙度随氟浓度升高而增加。在含氟0.05%人工唾液中浸泡后，钴铬合金和纯钛的表面粗糙度与其浸泡前相比差异有统计学意义（P
英文摘要
Objective To study the changes in surface morphology of cobalt-chromium alloy, pure titanium and high-cobalt chromium molybdenum alloy immersed in artificial saliva with different concentrations of fluoride, and to analyze the corrosion resistance of these metals. Methods The three kinds of metal were polished and then were immersed in artificial saliva with different concentrations of fluoride（0%, 0.05%, 0.2%）. All specimens were immersed for 3 weeks at（37.0±1.0）℃. Metal surface roughness before and after immersion were measured and analyzed by scanning electron microscope（SEM）. Results Metal surface roughness was increased with the concentration of fluoride. The surface roughness of the Co-Cr group and Ti group had a statistically significant difference between before and after immersion at the fluoride concentration of 0.05%（P
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