TRACING THE CORROSION PROCESSES OF DIFFERENT METAL-CERAMIC DENTAL CROWNS BY EIS AND SEM INVESTIGATION

Mihai Andrei, Daniel Gheorghe, Georgeta Voicu, Cristian Pîrvu
2015 Bull., Series B   unpublished
The paper aims on the investigations of corrosion processes of three different porcelain fused to metal dental crowns with CoCrMo frameworks. The three crowns, with different exposed metal surfaces, were investigated using electrochemical impedance spectroscopy (EIS), through 168 hours of experiment. The data were analyzed and the influence of corrosion processes was shown after the crowns were visualized as equivalent electrical circuits. Scanning electron microscopy (SEM) coupled with EDX was
more » ... oupled with EDX was used to analyze the crowns surfaces.
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