Porcayo-Calderon J, Casales-Diaz M, Salinas-Bravo V M, Martinez-Gomez L
CIICAp, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, 62209 Cuernavaca, MOR, Mexico ; Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Avenida Universidad s/n, 62210 Cuernavaca, MOR, Mexico.
Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Avenida Universidad s/n, 62210 Cuernavaca, MOR, Mexico.
Bioinorg Chem Appl. 2015;2015:930802. doi: 10.1155/2015/930802. Epub 2015 May 6.
Several austenitic stainless steels suitable for high temperature applications because of their high corrosion resistance and excellent mechanical properties were investigated as biomaterials for dental use. The steels were evaluated by electrochemical techniques such as potentiodynamic polarization curves, cyclic polarization curves, measurements of open circuit potential, and linear polarization resistance. The performance of steels was evaluated in two types of environments: artificial saliva and mouthwash solution at 37°C for 48 hours. In order to compare the behavior of steels, titanium a material commonly used in dental applications was also tested in the same conditions. Results show that tested steels have characteristics that may make them attractive as biomaterials for dental applications. Contents of Cr, Ni, and other minor alloying elements (Mo, Ti, and Nb) determine the performance of stainless steels. In artificial saliva steels show a corrosion rate of the same order of magnitude as titanium and in mouthwash have greater corrosion resistance than titanium.
几种由于具有高耐腐蚀性和优异机械性能而适用于高温应用的奥氏体不锈钢被作为牙科用生物材料进行了研究。通过电化学技术对这些钢材进行了评估，如动电位极化曲线、循环极化曲线、开路电位测量和线性极化电阻测量。在两种环境中评估了钢材的性能：37°C的人工唾液和漱口水溶液中放置48小时。为了比较钢材的性能表现，还在相同条件下测试了牙科应用中常用的材料钛。结果表明，测试的钢材具有一些特性，这可能使它们成为有吸引力的牙科应用生物材料。铬、镍和其他微量合金元素（钼、钛和铌）的含量决定了不锈钢的性能。在人工唾液中，钢材的腐蚀速率与钛处于同一数量级，而在漱口水中，钢材的耐腐蚀性比钛更强。
