Dental Space

نبدي كويز فسيو لاب

تريدون كويز بمادة فسيو لاب

if the manufactures add gypsum the setting time will be shortened because of the increase in the potential nuclei for crystallization.

Loss of gloss method :As reaction proceeds, the gloss disappears from the surface of the plaster mix (always used to indicate initial set)

The process of heating gypsum to produce plaster known as

Di stone :- produce by boiling gypsum with 50% of CaCl

How many theories of setting we have

Made by heating gypsum in wet conditions under super heat steam to 125C

_____ are irregular in shape and porous and called BETA

Type IV of gypsum products is

Type v of gypsum product is

All the following properties official modelmaterial except

W/p ratio the more water you use for mixing the fewer nuclei they will be per unit volume consequntly the setting will be prolonged