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Microstructures of Cu-rich Amalgams after Corrosion

Northwestern University, The Dental School, Department of Biological Materials, 311 E. Chicago Ave., Chicago, Illinois 60611

G.W. Marshall

Northwestern University, The Dental School, Department of Biological Materials, 311 E. Chicago Ave., Chicago, Illinois 60611

S.J. Marshall

Northwestern University, The Dental School, Department of Biological Materials, 311 E. Chicago Ave., Chicago, Illinois 60611

In vitro corrosion of Cu-rich amalgams resulted in selective attack of the ' phase. Copper was removed, and SnO₂ products were found in pores and along matrix grain boundaries. The corrosion process greatly accelerated the ₁β₁ transformation.

REFERENCES

• Marek, M. and Hochman, R.F.: Corrosion Properties of a Low Silver, High Copper Dental Amalgam, IADR Progr & Abst 55: No. 881, 1976.
• Marshall, G.W.; Jackson, B.L.; and Marshall, S.J.: Copper-rich and Conventional Amalgam Restorations after Clinical Use, JADA 100:43-47, 1980.
• Espevik, S.: In vitro Corrosion of Dental Amalgams with Different Cu-Content, Scand J Dent Res 85:631-636, 1977.[Medline] [Order article via Infotrieve]
• Marshall, S.J.; Lin, J.-H.C.; and Marshall, G.W.: Cu2O and CuCl2·3Cu(OH)2 Corrosion Products on Copper Rich Dental Amalgams, J Biomed Mater Res 16:81-85, 1982.[CrossRef][Medline] [Order article via Infotrieve]
• Meyer, J.M. and Nally, N.J.: Early and Delayed Corrosion Resistance of Dental Amalgams, IADR Progr & Abst 56: No. 241, 1977.
• Sarkar, N.K.; Fuys, R.A.; and Stanford, J.W.: Corrosion of High Copper Silver-Tin Dental Amalgam, IADR Progr & Abst 57: No. 358, 1978.
• Averette, D.F.; Hochman, R.F.; and Marek, M.: The Effects of Corrosion In Vitro on the Structure and Properties of Dental Amalgam, IADR Progr & Abst 57: No. 361, 1978.
• Marek, M. and Mahler, D.B.: The Corrosion Susceptibility of a High Copper Amalgam as a Function of the Mercury Content, IADR Progr & Abst 58: No. 968, 1979.
• Reese, S.B.; Hochman, R.F.; and Marek, M.: Low Temperature Diffusion of Copper in the 1 and β1 Phases of Dental Amalgam, AADR Progr & Abst 59: No. 106, 1980.
• Marshall, S.J. and Marshall, G.W.: Sn4(OH)6Cl2 and SnO Corrosion Products of Amalgam, J Dent Res 59:820-823, 1980.[Abstract/Free Full Text]
• Mateer, R.S. and Reitz, C.D.: Corrosion of Amalgam Restorations, J Dent Res 49:399-407, 1970.[Free Full Text]
• Marshall, G.W. and Marshall, S.J.: X-ray Diffraction and SEM/EDS Analyses of New Dental Amalgams, J Oral Rehab 8:45-53, 1981.
• Marshall, G.W. and Marshall, S.J.: Characteristics of the Reaction Zones of Some Cu-rich Amalgams. In: Biomaterials, New York, NY: John Wiley and Sons, Ltd., 1980, In: Advances in Biomaterials, Vol. 3, Winter, G.D., Gibbons, D.F., and Plenk, H., Jr., Eds., New York, NY: John Wiley and Sons, Ltd., 1982, pp. 335-340.
• Lin, J.-H.C.; Marshall, G.W.; and Marshall, S.J.: Corrosion Products on Copper Rich Amalgam Alloy Pellets, IADR Progr & Abst 60: No. 690, 1981.
• Mahler, D.B.; Adey, J.D.; and Van Eysden, J.: Transformation of 1 in Clinical Amalgam Restorations, IADR Progr & Abst 52: No. 190, 1973.

Journal of Dental Research, Vol. 62, No. 2, 112-115 (1983)
DOI: 10.1177/00220345830620020401


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This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Lin, J.-H.C. Articles by Marshall, S.J. Search for Related Content PubMed PubMed Citation Articles by Lin, J.-H.C. Articles by Marshall, S.J. Social Bookmarking                         What's this?