A New to the Condensation of Amalgam Under in vivo Conditions

SAGE Publications - Tập 66 Số 3 - Trang 737-739 - 1987
Adrian Lussi1, W. Buergin2
1Department of Operative Dentistry, School of Dentistry, University of Berne, 3010 Berne, Switzerland
2Department of Periodontology, School of Dentistry, University of Berne, 3010 Berne, Switzerland

Tóm tắt

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.

Từ khóa


Tài liệu tham khảo

Clark, A.E., 1981, Oper Dent, 6, 6

10.1016/0022-3913(85)90548-7

Hegdahl, T., 1970, Scand J Dent Res, 78, 62

10.1016/0022-3913(85)90284-7

10.1016/0022-3913(84)90094-5

Jrgensen, K.D., 1977, Amalgame in der Zahnheilkunde

10.3109/00016356609028727

10.3109/00016358309162343

Mayer, R., 1984, Dtsch Zahnärztl Z, 39, 736

Osborne, J.W., 1974, J Dent Res, 53, 30, 10.1177/00220345740530052201

Perriard, J., 1986, Rev mens suisse Odonto-stomatol, 96, 709

Rebel, H. (1950): Konservierende Zahnheilkunde. Munchen: Carl Hanser Verlag, pp. 139-140.

Wiedemann, W., 1984, Dtsch Zahnärztl Z, 39, 132

Wirz, J., 1982, Die Quintessenz, 3, 493

Wirz, J., 1984, Schweiz Mschr Zahnmed, 94, 1133

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SAGE Publications

Tập 66 Số 3

737-739

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