Comparative Study on the Corrosion Resistance of CAD/CAM and Conventional Processed Co-Cr Dental Alloys in NaCl Solutions

7th International Conference on Advanced Materials and Structures

Costea, L.-V.^1 ; Dan, M.L.^1 ; Savencu, C.E.^2 ; Porojan, L.^2

Faculty of Industrial Chemistry and Environmental Engineering, University Politehnica Timioara, Romania^1

Department of Dental Prostheses Technology, University of Medicine and Pharmacy V. Babe, Timioara, Romania^2

关键词: Comparative studies;    Computer assisted;    Corrosion behaviour;    Electroanalytical techniques;    Linear polarization;    Melting casting;    NaCl solution;    Traditional manufacturing;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/416/1/012047/pdf
DOI  :  10.1088/1757-899X/416/1/012047

来源: IOP

【 摘 要 】

The present study emphasizes on the structural implications of the machining procedure on base Co-Cr dental alloys in terms of corrosion resistance. We comparatively assessed the corrosion behaviour of two cobalt-chromium dental alloys: one manufactured by alternative computer assisted technologies obtained by CAD/CAM milling (MIL) and the other one by conventional melting- casting technology (CAS) in NaCl solutions. The samples have been evaluated using several electroanalytical techniques like: linear polarization, cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS). Preliminary testing is showing that the new computer assisted processing technologies are comprised as a viable alternative towards traditional manufacturing methods.