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- W2887890023 abstract "One of the most important factors affecting the choice of dental alloysis its biocompatibility and resistance to tarnish and corrosion. Corrosion ofan alloy occurs when elements in the alloy ionize .It is a chemical propertyof an alloy that affects other properties such as esthetics, strength andbiocompatibility. The purpose of this study was to evaluate and compare thecorrosive behavior of four commercially available nickels – chromium alloywith high noble as the control group.In this study ,forty samples from four nickel –chromium alloys and five samples from high noble alloy were subjected to cyclic polarization test and its corrosive behavior were evaluated. Four parameters such as Corrosion potential [Ecorr], breakdown potential [Eb], repassivation potential [Ep] and corrosion current [Icorr] were analyzed to evaluate the corrosive behavior. The specific elements released from the alloys were determined by inductive coupled plasma –mass spectrometer.Within the limitations of this study, it could be concluded that:1. High noble alloys are more resistant to corrosion than the base metal alloys.2. Within the base metal alloys study groups, Group III behaves to be more resistant to corrosion followed by Group II, Group V, Group IV.3. Both Nickel and Chromium ions were released during the corrosion process, but the percentage of Nickel ions was relatively higher than Chromium ions.Base metal alloys are generally used due to their good mechanical properties and low cost however certain precautions should be taken to ensure biological safety of metal ceramic restoration." @default.
- W2887890023 created "2018-08-22" @default.
- W2887890023 creator A5081518914 @default.
- W2887890023 date "2007-03-01" @default.
- W2887890023 modified "2023-09-26" @default.
- W2887890023 title "Comparative Evaluation of Corrosive Behavior of Four Commercially Available Nickel – Chromuim Alloys in Artificial Saliva by Cylcic Polarisation Test: An Invitro study" @default.
- W2887890023 hasPublicationYear "2007" @default.
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