مدرس المادة
´Gypsum products
´Products of gypsum are used extensively in dentistry. Gypsum is a mineral mind in various parts of the world .It is an industrial byproduct and it is used, for many centuries for construction purposes.
´Application in dentistry:
1.Impression plaster was used for impressions of the mouth.
2.Casts and dies over which dental prostheses and restorations are made.
3.Mounting to the articulater.
4.Molds for processing dental polymers.
5.Dental investments: when plaster is mixed with silica it is known as dental investment .They are used to form molds into which molten metal is cast.
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