DENTAL IMPRESSION DEVICE AND METHOD FOR USING IT Russian patent published in 2014 - IPC A61C9/00 

FIELD: medicine.

SUBSTANCE: group of inventions refers to medicine, namely to orthopaedic dentistry, and aims at simultaneous impression taking of upper and lower dentures, as well s separately of upper, lower jaws or parts thereof. A dental impression device comprises a suction pump with a reducing valve and a vacuum hose. An impression material is an elastic U-shaper filled with a bulk that is talcum powder, comprising a neck and an annular sealing, and an assembled body inserted into the neck. The assembled body consists of the body itself with an annular groove, a filter cartridge, a non-return valve to prevent loss of pressure, a non-return valve seat in vacuum an internal opening of which is funnel-shaped with rounded walls, and a screw cap to avoid the non-return valve drop out from the body. The annular sealing of the neck of the elastic shaper comes into the annular groove of the body. A vacuum hose connected to the suction pump with the reducing valve is attached to the body. The method for dental impression consists in the fact that an impression process involves generating primary vacuum in the elastic shaper, correcting outer and inner surfaces of the impressions, and a final impression is formed by generating secondary vacuum. To form occlusal surfaces, the upper and lower impressions are formed simultaneously. To prepare another dental impression, vacuum is released by moving the non-return valve from the body seat. To prepare upper or lower dental impressions, an impression tray is used; a front portion of the tray comprises a socket for the body assembled with the filter cartridge and a portion of the neck of the elastic shaper.

EFFECT: due to using the device correcting the impression in process, the method enables impressing the oral cavity accurately and eliminating the problem of vomiting reflex in elderly people and children.

5 cl, 3 dwg