复合弓丝在含酶人工唾液中的抗腐蚀性能研究  

Study on the corrosion resistance of composite wire in artificial saliva containing enzyme

作　　者：张超[1] 肖轺穆[1] 刘楚峰[1] 余瑞雪[1] 刘从华[1] 崔野[1] 刘显文[2] ZHANG Chao;XIAO Yao-mu;LIU Chu-feng;YU Rui-xue;LIU Cong-hua;CUI Ye;LIU Xian-wen(Department of Orthodontics,Guangdong Provincial Stomatological Hospital & the Affiliated Stomatological Hospital of Southern Medical University,Guangzhou 510280, China;Department of Oral and Maxillofacial Surgery, Guangdong Provincial Stomatological Hospital & the Affiliated Stomatological Hospital of Southern Medical University, Guangzhou 510280, China)

机构地区：[1]广东省口腔医院.南方医科大学附属口腔医院正畸科,广东广州510280 [2]广东省口腔医院.南方医科大学附属口腔医院口腔颌面外科,广东广州510280

出　　处：《口腔疾病防治》2016年第11期645-650,共6页Journal of Prevention and Treatment for Stomatological Diseases

基　　金：广东省科技计划项目(2012B061700107)

摘　　要：目的探索激光焊接复合弓丝在含有唾液淀粉酶和胰淀粉酶人工唾液中的抗腐蚀能力,对比两种淀粉酶对弓丝抗腐蚀性能的影响及其机制。方法复合弓丝的抗腐蚀能力采用电化学极化和浸泡实验的方法评估,浸泡于含酶的人工唾液28 d后的可溶性腐蚀产物用等离子光谱仪进行检测,表面形貌采用扫描电镜、能谱仪和原子力显微镜进行分析。结果唾液淀粉酶和胰淀粉酶均能够提高复合弓丝的抗腐蚀能力;同工异构酶也会对同种合金的抗腐蚀能力产生不同的影响。结论新型金属生物材料拟应用于口腔时,淀粉酶可能对其抗腐蚀能力有影响。Objective To explore the anti corrosion ability of laser welded composite wire in artificial saliva containing salivary amylase and pancreatic amylase, and to compare the effect of two kinds of amylase on corrosion resistance of wire and its mechanism. Methods The corrosion resistance of composite wire was evaluated by electrochemical polarization and immersion test. The soluble corrosion products after 28 d immersion in artificial saliva were detect?ed by plasma spectrometer. The surface morphology was analyzed by scanning electron microscope, energy spectrometer and atomic force microscope. Results Salivary amylase and pancreatic amylase could improve the corrosion resistance of the composite arch wire; the same isomerase would have different effects on the same alloy corrosion resistance. Conclusion When the new metal biological material is applied to the oral cavity, the amylase may have influence on its corrosion resistance.

关 键 词：铜 腐蚀 界面 胰淀粉酶 唾液淀粉酶 

分 类 号：R783.5[医药卫生—口腔医学]