METHOD OF MANUFACTURING DETACHABLE DENTAL PROSTHESES Russian patent published in 2011 - IPC A61C13/08 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to orthopedic dentistry. Method of manufacturing detachable dental prostheses which contain rigid basis and elastic padding includes formation of elastic padding by manufacturing wax model by impression of part of oral cavity for which prosthesis is made, formation of wax model in flask by means of forming mass, removal of wax, formation of pour canals and pouring of composition for formation of elastic padding, which contains oligoalkylenepolyisocyanate, oligopolyatomic alcohol and catalyst; keeping flask for formation of elastic padding, formation of polyurethane rigid basis. For manufacturing of casting form packing plaster is used. For drying form from packing plaster and model from superplaster, used is convection oven for 35 minutes at temperature 270°C. Before pouring composition for formation of elastic padding, form from packing plaster and model from superplaster are installed on vibrotable, fixed, filled with composition, polymerised in convection oven for 30 min at 120°C. Removed out of form model from superplaster with elastic padding is installed into preliminarily prepared form from packing plaster with artificial teeth for casting detachable prosthesis, which is installed on vibrotable, poured with polyurethane composition for manufacturing rigid basis and polymerised in convection oven for 30 minutes at temperature 120°C.

EFFECT: increase of accuracy of teeth positioning in detachable dental prostheses, reduction of time of manufacturing detachable dental prostheses with elastic padding, reduction of detachable dental prosthesis cost.

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