Impression tray for dental purposes

Details Impression tray for dental purposes Impression tray for dental purposes

A - Human Necessities

61

C

83/8

A61C 9/00 (2006.01)

Patent

CA 1201911

APPLICANTS: BROR AXEL ERLING ANDERSSON and RAGNVALD ERIK LINDBLOM TITLE: IMPRESSION TRAY FOR DENTAL PURPOSES ABSTRACT OF THE DISCLOSURE An impression tray for dental purposes has a shovel-like blade provided on its inside with means forming attachments for a semi-liquid or plastic impression material which is put onto the tray when it is pressed against the lower or upper jaw for taking an impression. In accordance with the invention, the fastening means form a layer of uniformly distributed thread-shaped attachment means with closely- lying attachment points on the inside of the tray, the filamental fastening means having a stiffness such that they can penetrate into the semi-liquid or plastic impres- sion material when the tray with the material is pressed against the respective jaw for the purpose of the closely- lying attachment means being incorporated as effective anchoring means in the bottom layer of the impression material when said material has solidified and the tray is to be jerked loose.

429161

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