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Romanian Journal of Oral Rehabilitation Numarul 2 THE STUDY OF ROUGHNESS AND RESISTANCE TO CORROSION OF DENTAL ALLOYS IN THE ORAL ENVIRONMENT

THE STUDY OF ROUGHNESS AND RESISTANCE TO CORROSION OF DENTAL ALLOYS IN THE ORAL ENVIRONMENT

Adina Oana Armencia, Ion Hurjui, Tărniceriu Claudia Cristina, Ana Lese, Ramona Feier, Monica Mihaela Scutariu, Carina Balcos

ABSTRACT:

Through its enzymatic process, the oral environment is setting out catabolism chemical products, having favourable effects on the used in restoration. Increase Cu and Sn percent increase a corrosion velocity and surface aspect. This decrease with increase Mo and Co percent through passive effect. Increase Fe concentration increase corrosion velocity. Al is very affected in Cu presented. Increase percent Si increase corrosion velocity to galvanic effect. Corrosion implies the presence of an electrolyte around the metal or alloys subjected to corrosion, damaging of the crystaline network of the material being governed by the electrochemical laws of kinetics.

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