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Electrochemical investigations regarding the bioavailability of silver after potentiodynamic corrosion load of precious metal alloys Part 1: Binary model alloys
Author(s) -
Liefeith K.,
Hildebrand G.
Publication year - 1998
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/(sici)1521-4176(199806)49:6<414::aid-maco414>3.0.co;2-9
Subject(s) - corrosion , biocompatibility , metallurgy , materials science , electrochemistry , nuclear chemistry , metal , alloy , chemistry , electrode
The application of silver containing alloys in the field of dental prosthetics has been widely‐spread especially in the last two decades. Systematic investigations about the biocompatibility of silver containing alloys are necessary because of the known cytotoxic and inflammatory effects of silver. In the course of this study it was possible to show that special cyclic potentiodynamic measurements on Ag‐Au model alloys in artificial saliva in connection with further analytical methods are basically allowing conclusions about the quantity as well as the nature of the formed corrosion products and the respective activation mechanism which will be responsible for the bioavailabillity of silver. The presented results clearly indicate that a reliable determination and registration of all corrosion products has to include a careful examination of the interface to the biosystem, because it is not possible to guarantee in any way that an element specific analysis of the electrolyte alone will deliver representative results regarding the biocompatibility of the tested materials.