Study of electrochemical corrosion of biocompatible Co-Cr and Ni-Cr dental alloys in artificial saliva. Influence of pH of the solution

被引：28

作者：

Turdean, Graziella L. ^{[1
]}

Craciun, Antarinia ^{[2
]}

Popa, Daniela ^{[2
]}

Constantiniuc, Mariana ^{[2
]}

机构：

[1] Babes Bolyai Univ, Fac Chem & Chem Engn, Chem Engn Dept, Res Ctr Electrochem & Nonconvent Mat, 11 Arany Janos St, Cluj Napoca, Romania

[2] Iuliu Hatieganu Univ Med & Pharm, Fac Med Dent, 8 Victor Babes St, Cluj Napoca, Romania

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2019年 / 233卷

关键词：

Biomaterials; Corrosion; Electrochemical impedance spectroscopy; BINARY-ALLOYS; BEHAVIOR; RESISTANCE; FLUORIDE; MO; TRIBOCORROSION;

D O I：

10.1016/j.matchemphys.2019.05.041

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The pH of saliva is changeable and variable in the oral environment in function of the quality of foods and liquids ingested. Also, the biocompatibility of a material for dental applications is checked not only by clinical and epidemiological studies, but also by corrosion resistance studies. The aim of this study was to investigate the influence of the pH value of artificial saliva on the corrosion of the Co-Cr and Ni-Cr dental alloys, using different electrochemical techniques such as: cyclic voltammetry, open circuit potential (OCP) measurement, polarization curves and electrochemical impedance spectroscopy (EIS). The obtained results are complementary with scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscopy (EDXS) analysis, proving that Co-Cr alloy is more resistant in time, and recommending it for successful treatment of patients with dental prosthesis having metal frameworks.

引用

页码：390 / 398

页数：9

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