Conducting a comparative assessment of the physico-mechanical properties of gypsum as an auxiliary dental material

Abstract

Natural gypsum is a widespread white, gray or yellowish. His sensitive occur together with clay, limestone, rock salt. The chemical composition of natural gypsum - dihydrate calcium sulfate. Gypsum formation is a result of its loss in the sediment in lakes and lagoons of aqueous solutions, where many of calcium sulfate are. The main deposits of gypsum belong to the sedimentary gypsum. In its pure form is rare. Tooth-technical gypsum is produced by burning natural gypsum