Calcium sulfate hemihydrate reduced to a fine powder; the addition of water produces a porous mass that hardens rapidly. It has been used extensively for pouring dental impressions and subsequent casts.
A fine white plaster used to make plaster casts.
A preparation of gypsum (calcium sulfate) that sets hard when water is added. It is used in dentistry for making molds and in orthopedics for preparing plaster casts.
A form of calcium sulphate, which, after soaking in water, sets firmly. For this reason it is widely used as a form of splinting in the treatment of fractures, for producing casts to immobilise parts of the body, and for dental models. Splints are made with bandages impregnated with plaster and a suitable adhesive. Its great advantage, compared with an ordinary splint, is that it can be moulded to the shape of the limb.
Gypsum cement, hemi-hydrated calcium sulfate (CaS04 2H20), mixed with water to form a paste that sets rapidly; used to make casts and stiff bandages.
A pale powder composed of a calcium compound that, when combined with water, forms a malleable paste that can be molded before it solidifies. Plaster of Paris finds application in creating casts and crafting dental models.