STOMATOLOGIC IMPRESSION TRAY AND METHOD OF ITS MANUFACTURE Russian patent published in 2006 - IPC A61C9/00 

FIELD: medicine; orthopedic stomatology.

SUBSTANCE: stomatologic impression tray intends for placing the whole dental arch of patient and has tray for impression mass provided with bottom and board for manipulating tray. According to method manufacture of impression tray, handle and tray are manufactured de to bending one sheet of central part intended for forming bottom of the tray, front protruding part for forming handle and two symmetrically disposed side parts which are used for forming board of tray. Sheet of lamellar material is cut to have two symmetrical side parts which are joined at some part of length with central part along curvilinear linear of bend to have parts which are not joined with central part and which end up with end edge. Side parts are bent away along curvilinear lines of fold till side parts take position being perpendicular to central part. Then those parts are folded to form cylindrical surface till those parts finally form front side of board of tray due to placing end edges of side parts to join front part of tray without space. Front part of tray is disposed in opposition to handle. Impression mass is kept tight during removal of impression from dental arch.

EFFECT: fast and efficient process of manufacture.