[Zinc oxide phosphate cement studies on the usefulness of Firmat]

The aim of the present investigations was to evaluate the Firmat zinc oxyphosphate cement in comparison with other brands, especially Adhesor normalhartend. The results obtained show that Firmat is a fast-setting phosphate cement which is not suited for polyhedral cavity linings. Time and material-consuming reworking is necessary. For temporary fillings, a temporary filling material should be used which is sufficiently solid, but easier to remove.