临床口腔医学杂志2017，Vol.33Issue(3)：148-152,5.DOI:10.3969/j.issn.1003-1634.2017.03.007
不同生存状态变形链球菌对纯钛表面腐蚀影响的研究
Corrosion behavior of pure titanium in the presence of Streptococcus mutans under different living conditions
摘要
Abstract
Objective:To investigate the surface corrosion behavior of pure titanium in the presence of Streptococcus mutans(S.Mutans) under different living conditions .Method:Brian heart infusion(BHI)medium treated titanium discs were served as blank control .Titanium discs treated with BHI and BHI-phosphate buffer saline ( PBS) cultured S.Mutans respec-tively were served as the experiment groups .Culture medium in each group was changed every 2 days.After 7 days,samples were obtained for electrochemical tests and scanning electron microscopy ( SEM ) observation .Results:The surface imped-ance, impedance modulus,low-frequency phase angle and polarization resistance (Rp) of titanium discs in two experimental groups were all decreased , compared with those of blank control group ,but there was no significant difference between two experimental groups(P>0.05).Corrosion defects were observed on bacterial treated titanium surfaces from SEM tests .Con-clusion:Under the condition of the present study ,S.Mutans could accelerate the surface corrosion of pure titanium ,and the corrosion ability was not influenced by nutrition conditions .关键词
变形链球菌/钛/饥饿/腐蚀Key words
Streptococcus mutans/Titanium/Starvation/Corrosion分类
医药卫生引用本文复制引用
曾凯,魏蔚,杨焰,朱其亮,朱伟,马净植..不同生存状态变形链球菌对纯钛表面腐蚀影响的研究[J].临床口腔医学杂志,2017,33(3):148-152,5.基金项目
国家自然科学基金资助项目(81641035,81401524) （81641035,81401524）
武汉市科学技术计划项目(2015010202010094) （2015010202010094）
