华西口腔医学杂志2012，Vol.30Issue(1)：18-21,4.DOI:10.3969/j.issn.1000-1182.2012.01.004
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
程玮 1于海利 2林雪芬 3韩晓鹏 1刘利苹 3丁婷婷 3汲平1
作者信息
- 1. 山东大学口腔医院修复科
- 2. 山东省口腔生物医学重点实验室,济南250012
- 3. 烟台市口腔医院修复科,烟台264000
- 折叠
摘要
Abstract
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＜0.01), and the difference between Co-Cr group and vitallium2000 group, Ti group and vitallium2000 group were statistically significant difference (P＜0.01). The differences of three groups before and after immersion were statistically significant at the fluoride concentration of 0.2%(P＜0.01), and the difference among three groups was statistically significant (P＜0.01). Conclusion Patients who frequently use fluoride products should not use pure titanium or cobalt-chromium alloy prosthesis. Patients with these three metal prostheses are not advised to use high concentration fluoride products.关键词
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分类
医药卫生引用本文复制引用
程玮,于海利,林雪芬,韩晓鹏,刘利苹,丁婷婷,汲平..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[J].华西口腔医学杂志,2012,30(1):18-21,4.
