A quantitative test for corrosion due to oxidation has been accomplished. The oxygen concentration of dental amalgams was measured by fast neutron activation which provides a means of detecting oxygen in as small a quantity as 10 to 20 micrograms. An increase in oxygen content with age of spherical blend amalgam implants was observed, confirming the importance of oxidation processes in in vivo corrosion.
Get full access to this article
View all access options for this article.
References
1.
Mareer, R.S. , and Reitz, C.D., Corrosion of Amalgam Restorations , J Dent Res49:399-407, 1970.
2.
Sarkar, N.K. , and Greener, E.H.: Corrosion Behavior of the Tin-Containing Silver-Mercury Phase of Dental Amalgam, J Dent Res53:925-932,1974.
3.
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 Res54: 1031-1038, 1975.
4.
Volborth, A. ; Miller, G.E.; and Garner, C.K.: Accurate Determination of a Neglected Element and Its Potential in Chemistry, Am Lab87-98, Oct., 1975 .
5.
Volbroth, A. , personal communication.
6.
Mahler, D.B. ; Terkla. L.G. ; and Van Eysden , J.: Marginal Fracture of Amalgam Restorations, J Dent Res52:823-827, 1973.
