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Journal of Dental Research
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Dimensional Changes of a High-tin Content Amalgam

G.C. Paffenbarger

American Dental Association Health Foundation Research Unit, National Bureau of Standards, Washington, DC 20234

N.W. Rupp

American Dental Association Health Foundation Research Unit, National Bureau of Standards, Washington, DC 20234

P.R. Patel

American Dental Association Health Foundation Research Unit, National Bureau of Standards, Washington, DC 20234

Amalgam made with Brewster Alloy (62% Ag, 33% Sn, 5% Cu, and 0.2% Zn) had little or no dimensional change during 24 h at 23°C.

Brewster amalgam stored for five yr in air expanded 186, 68, and 14 µm/cm at 60, 37, and 23°C, respectively.

Nearly "stable" conditions were approached at about 50 mo.

REFERENCES

  • Paffenbarger, G.C.; Rupp, N.W.; and Patel, P.R.: Dimensional Change of Dental Amalgam and a Suggested Correlation Between Marginal Integrity and Creep, JADA 99:31-36,1979.
  • Paffenbarger, G.C.; Rupp, N.W.; and Patel, P.R.: Linear Dimensional Change of Copper-rich Dental Amalgam, JADA 99:468-471, 1979.
  • Paffenbarger, G.C.; Rupp, N.W.; and Waterstrat, R.M.: Linear Change in Zinc and Non-zinc Paired Amalgams at 60°C, IADR Progr & Abst 59:No. 333, 1980.
  • Rupp, N.W.; Paffenbarger, G.C.; and Coyne, M.P.: Dimensional Changes in Air on Amalgams after 41/2 Years, IADR Progr & Abst 60:No. 689, 1981.
  • Paffenbarger, G.C.; Rupp, N.W.; and Patel, P.R.: Copper-free Amalgams: Dimensional Change after 41/2 Years, IADR Progr & Abst 60:No. 841, 1981.
  • Guide to Dental Materials and Devices, 6th ed, Chicago, IL: American Dental Association, 1972-1973, p. 22.
  • Guide to Dental Materials and Devices, 2nd ed., Chicago, IL: American Dental Association, 1964, p. 85.
  • Black, G.V.: The Physical Properties of Silver-Tin Amalgams, Dent Cosmos 37:965-992, 1896.
  • Gayler, M.L.V.: The Setting of Dental Amalgam. Part III, Br Dent J 58:145-160, 1935.
  • American Dental Association Specifications for Dental Materials, 4th ed., Chicago, IL: American Dental Association, 1969, p. 17.
  • Guide to Dental Materials and Devices, 7th ed., Chicago, IL: American Dental Association, 1974-1975, p. 170.
  • Caul, H.J.; Crowell, W.S.; Kimmel, W.D.; and Paffenbarger, G.C.: Early Strength, Flow and Dimensional Changes
  • Obtained on Amalgam Prepared with Standardized Technic, JADA 69:742-748, 1964.
  • Taylor, N.O.: A Survey of Amalgam Alloys: A Report to the Research Commission of the American Dental Association, JADA 16:3-11, 1929.
  • Reynolds, C.L.: The Redistribution of Mercury as Observed in Phase Transformations in Amalgam, J Biomed Mater Res 7:335-352, 1973.[CrossRef][Medline] [Order article via Infotrieve]
  • Johnson, L.B.: Confirmation of the Presence of β (Ag-Hg) in Dental Amalgam, J Biomed Mater Res 1:415-425, 1967.[CrossRef][Medline] [Order article via Infotrieve]
  • Johnson, L.B.: The Amount of Tin in the {gamma}1 Phase of Dental Amalgam, J Biomed Mater Res 5:239-244, 1971.[CrossRef][Medline] [Order article via Infotrieve]
  • Jrgensen, K.D.: The Mechanism of Marginal Fracture of Amalgam Fillings, Acta Odontol Scand 23:347, 1965.[CrossRef][Medline] [Order article via Infotrieve]

Journal of Dental Research, Vol. 61, No. 12, 1423-1426 (1982)
DOI: 10.1177/00220345820610120901
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This Article
Right arrow Abstract Freely available
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via Google Scholar
Right arrow Citing Articles via Scopus
Google Scholar
Right arrow Articles by Paffenbarger, G.C.
Right arrow Articles by Patel, P.R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Paffenbarger, G.C.
Right arrow Articles by Patel, P.R.
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What's this?