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A New to the Condensation of Amalgam Under in vivo Conditions

Department of Operative Dentistry, School of Dentistry, University of Berne, 3010 Berne, Switzerland

W.B. Buergin

Department of Periodontology, School of Dentistry, University of Berne, 3010 Berne, Switzerland

The purpose of this study was to investigate the condensation pressure of amalgam achieved under close to in vivo conditions by 42 general practitioners who were asked to fill a pre-cut standard class 2 cavity in a mannequin head. A measuring device was designed to allow the maximum and average condensation pressures and working and resting periods to be obtained. The results showed a maximum condensation pressure of 9.17 ± 3.04 MPa and 4.09 ± 1.41 MPa with a small (diameter, 1.15 mm) and a large (diameter, 1.8 mm) amalgam plugger, respectively. Only one of the 42 dentists reached the recommended condensation pressure of 15 MPa (Jørgensen, 1977). A significant (p 0.001) correlation between the duration of the working periods and the maximum condensation pressure was found (r = 0.61). Further investigations are required to determine the influence of these different condensation pressures on the physical properties of various amalgams.

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Journal of Dental Research, Vol. 66, No. 3, 737-739 (1987)
DOI: 10.1177/00220345870660030601


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This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted 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 Google Scholar Citing Articles via Scopus Google Scholar Articles by Lussi, A.S. Articles by Buergin, W.B. Search for Related Content PubMed PubMed Citation Articles by Lussi, A.S. Articles by Buergin, W.B. Pubmed/NCBI databases Substance via MeSH Social Bookmarking                         What's this?