title: Analytical and electrochemical evaluation of the in vitro corrosion behavior of nickel-chrome and cobalt-chrome casting alloys for metal-ceramic restorations.
abstract: In this study we examined the hypothesis based on relevant literature survey that the in vitro corrosion behavior of a Cobalt-chrome dental casting alloy for metal-ceramic restorations is better than that of a Nickel-chrome dental casting alloy. The corrosion released metal ions were analysed by Inductively Coupled Plasma-Atomic Emission Spectroscopy. Moreover, the specimens were electrochemically tested by linear polarization. The statistical analysis of the results showed statistically significant differences in corrosion rates of Nickel-chrome alloy and Cobalt-chrome alloy calculated by analytical and electrochemical measurements. The hypothesis was confirmed and the results showed that the corrosion rates of the Cobalt-chrome alloy were lower than that of the Nickel-chrome alloy.
authors: kyfantis@central.ntua.gr
authors: Constaninos
authors: C
authors: Yfantis
authors: Dimitrios
authors: D
authors: Yfantis
authors: Jane
authors: J
authors: Anastassopoulou
authors: Theophilos
authors: T
authors: Theophanides
mesh_terms: D002858:Chromium Alloys / Q000737:chemistry*; D003343:Corrosion; D004563:Electrochemistry; D016876:Metal Ceramic Alloys / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D002858:Chromium Alloys; D016876:Metal Ceramic Alloys