A comparative study of the corrosion stability of dental amalgams with electrochemical impedance measurements. Issue 6 (30th January 2020)

• Record Type: Journal Article
• Authors: Liu, Dan; Xie, Xuan; Roscher, Jessica; Holze, Rudolf
• Is Part Of: Materials and corrosion. Volume 71:Issue 6(2020)
• Page Start: 949
• Page End: 955
• Publication Date: 2020-01-30
• Subjects: corrosion -- dental amalgams -- dentistry -- electrochemical impedance measurements; Materials -- Periodicals; Metals -- Periodicals; Corrosion and anti-corrosives -- Periodicals; 620.1122305
• DOI: 10.1002/maco.201911468
• Languages: English
• ISSNs: 0947-5117

Abstract

Abstract: The corrosion susceptibility of a selection of amalgams used in dentistry has been examined with the electrochemical impedance method. The results are compared with data derived from cyclic voltammetry performed with these materials before. Most examined materials including a conventional amalgam show similar corrosion resistance; however, only one product shows a significantly higher corrosion resistance. Abstract : Electrochemical impedance measurements of representative amalgams of different classifications show rather similar corrosion resistances, that is, corrosion stabilities with only one product with significantly higher values (see figure) implying a higher stability. In contrast to similar observations reported elsewhere, based on various methods, our approach is as close as possible to spontaneous corrosion conditions.