The anodic behavior of the Sn, the Sn8Hg (γ2) phase and the dental amalgam in a chloride solution has been investigated by means of the linear potential sweep and of the intensiostatic pulse method. The results indicate that anodic current varies with chloride concentration and that dissolution occurs prior to passivation of the electrode. The anodic charge needed for the passivation is smallest for the dental amalgam.
Get full access to this article
View all access options for this article.
References
1.
Guthrow, C.E. ; Johnson, L.B.; and Lawless, K.R.: Corrosion of Dental Amalgam and its Component Phases, J. Dent. Res., 46:1372, 1967.
2.
Mueller, H.J.; Greener, E.H.; and Crimmins, D.S.: Electrochemical Behavior of Dental Amalgam, IADR 45th Session, 1967, Abstr. No. 1208.
3.
Ross, T.K.; Carter, D.A.; and Smith, D.C.: A Potentiostatic Study of the Corrosion of Dental Silver-Tin Amalgam, Corros . Sci., 7:373-6, 1967.
4.
Lee, L.H.: Corrosion and Electrochemical Characteristics of Dental Amalgams, Ph.D. Dissertation , Rensselaer Polytechnic Institute, Troy, N.Y., 1969.
5.
Boyer, D.B.; Stoner, G.E.; and Lawless, K.R.: The Anodic Oxidation of Dental Amalgam, IADR 48th Session, 1970, Abstr. No. 123.
6.
Mueller, H.J.; Sarkar, N.; and Greener, E.: Electrochemical Properties of Commercial Dental Amalgams, IADR 48th Session, 1970, Abstr. No. 125.
7.
Nakai, H.; and Ishizaki, N.: Influence of the Initial Hg Content on the Electrochemical Properties of Dental Amalgam, J. Osaka Dent. Univ., 5:40-57, 1971.
8.
Shimizu, M.; Fusayama, T.; and Horibe, T.: Corrosion Tendencies of Amalgam Surfaces Compared with Spontaneous Electric Potentials, J. Dent. Res., 50:455-9, 1971.
9.
Stoner, G.E. ; Senti, S.E.; and Gileadi, E.: Effect of Sodium Fluoride and Stannous Fluoride on the Rate of Corrosion of Dental Amalgams. J. Dent. Res. , 50:1647-53, 1971.
10.
Yata, M.; Ikejiri, S.; and Yoshimura, C.: Studies on Electrochemical Corrosion of Amalgam, J. Jap. Res. Soc. Dent. Materials Appliances, 23:102-7,1971.
11.
Greener, E.H.; and Sarkar, N.K.: Corrosion of Amalgams in Chloride and Sulfide Solution, IADR 49th Session, 1971, Abstr. No. 17.
12.
Stoner, G.E. ; Lawless, K.R.; and Wawner, F.: Corrosion Resistant Silver-Tin Amalgams, J. Dent. Res., 50:519, 1971.
13.
Svare, C.W. ; and Kai ChiuCHAN: Effect of Surface Treatment on the Corrodibility of Dental Amalgam, J. Dent. Res., 51:44-7,1972.
14.
Marek, M.; and Hochman, R.F.: Corrosion Behavior of Amalgam Electrodes in Artificial Saliva, IADR 50th Session, 1972, Abstr. No. 63.
15.
Sarkar, N.K.: The Electrochemical Behavior of Dental Amalgams and their Component Phases, Ph.D. Dissertation, North-western University, Chicago, Ill., 1973.
16.
Marek, M.; and Hochman, R.F.: The Corrosion Behavior of Dental Amalgam Phases as a Function of Tin Content , IADR 51st Session, 1973, Abstr. No. 63.
17.
Sarkar, N.K. ; and Greener, E.H.: Corrosion Behavior of the Tin-containing Silver Mercury Phase of Dental Amalgam, J. Dent. Res., 53:925-32, 1974.
18.
Sarkar, N.K. ; and Greener, E.H.: Electrochemistry of the Saline Corrosion of Conventional Dental Amalgam, J. Oral. Rehab., 2:49-62, 1975.
19.
Do Duc, H.; and Tissot, P.: Etude de la corrosion d'alliages étain-mercure , Chimia, 29:19-20,1975.
20.
Abadir, B.S. : The Electrochemical Behavior of Dental Amalgam Alloys, Corros. Sci., 17:219-24,1977.
21.
Fairhurst, C.W.; and Ryge, G.: Advances in X-Ray Analysis, Plenum Press, Inc., 1961, vol. 5, pp. 64-70.
22.
Otani, H.; Jesser, W.A.; and Wils-Dorf, H.G.F. : The In Vivo and In Vitro Corrosion Products of Dental Amalgams, J. Biomed. Mater. Res., 7:523-39, 1973.
23.
Marshall, G.W. ; Sarkar, N.K.; and Greener, E.H.: Detection of Oxygen in Corrosion Products of Dental Amalgam, J. Dent. Res., 54:904, 1975.
24.
Sarkar, N.K. ; Marshall, G.W.; Moser, J.B.; and Greener, E.H.: In Vivo and In Vitro Corrosion Products of Dental Amalgam, J. Dent. Res., 54:1031-8, 1975.
25.
Hoar, T.P.: The Corrosion of Tin in Nearly Neutral Solutions", Trans. Far. Soc., 33: 1152-67,1937.
26.
Prytz, M.: Komplexbildung in Stannochlorid und Stannobromidlösungen, Z. Anorg. Chem., 172:147-66, 1928.
27.
Unpublished data
28.
Pourbaix, M.: Atlas d'equilibres electrochimiques á 25°C, Gauthier-Villars & Cie Editeur, 1963, p. 475.
29.
Golubev, A.I. ; and Kadyrov, M.K.: Investigation of Anodic and Cathodic Processes on Tin in Neutral Media, J. Appl. Chem. USSR, 44:1316-9, 1971.
30.
Mateer, R.S. ; and Reitz, C.D.: Corrosion of Amalgam Restorations, J. Dent. Res., 49:399-406, 1970.
