METHOD OF PRODUCTION OF STONE TOOTH MODELS Russian patent published in 1999 - IPC

FIELD: medicine, particularly, prosthodontics. SUBSTANCE: method includes making plaster cast, casting of working model with its subsequent dehydration by heating, and treatment with talc. In so doing, after making cast, working model is cast from gypsum modified with mixture of aqueous emulsion which consists of latex and latex with emulsifier. Used as latexes are latexes of various grades, and emulsifier is used in the form of SP-7 in the amount of 0.5%. EFFECT: higher accuracy of relief of base with respect to relief of prosthetic bed, improved full separation of plastic from gypsum with increased strength of stone model. 3 cl, 1 tbl