[Measurements of the elastic and permanent deflection of MOD restorations during vertical loading].
In a loading device the mesio-distal deflection of mod restorations caused by different forces is measured reproducibly with inductive transducers. The accuracy of the measurements is about +/- 1 micron. Uncemented inlays of a soft gold casting alloy deflect 40 microns under load and 25 microns permanently; for an extra hard gold casting alloy the maximum values amount to 30 and 5 microns, respectively, and for a silver palladium alloy to 15 and 2 microns, respectively. Restorations of a non-gamma-2 amalgam reveal deflections within the range of accuracy near 2 microns.
Viohl
J
J
Fachbereichs Zahn-, Mund- und Kieferheilkunde der Freien Universität Berlin.
Zimmer
M
M
D001732:Bite Force; D003722:Dental Alloys; D003793:Dental Restoration, Permanent; D003799:Dental Stress Analysis; D006047:Gold Alloys; D006801:Humans; D007284:Inlays; D010165:Palladium
D003722:Dental Alloys; D006047:Gold Alloys; D010165:Palladium
Messung der elastischen und bleibenden Aufbiegung von mod-Füllungen bei vertikaler Belastung.