Impression tray for retention of impression material

Details Impression tray for retention of impression material Impression tray for retention of impression material

1989-05-11

1990-03-13

Wilson, John J.

Dentistry

Apparatus

Having static product shaping surface

433 38, A61C 900

Patent

active

049079662

ABSTRACT:
A dental impression tray of substantially rigid material having impression material retention means for enhancing the retention of the impression material to the tray during the removal of the tray/impression material from the mouth after taking of an impression and for facilitating the removal and cleaning of the impression material from the tray after the impression has been recorded wherein the retaining means includes one or more elastomeric members stretched between anchoring points and positioned to be enveloped by the impression material loaded into the tray.

REFERENCES:
patent: 2597929 (1952-05-01), Gorsky et al.
patent: 2848811 (1958-08-01), Wagner
patent: 2963786 (1960-12-01), Browning
patent: 3534475 (1970-10-01), St. Hilaire
patent: 3686759 (1972-08-01), Pross geb. Hogreve
patent: 3834025 (1974-09-01), Schunemann
patent: 4003132 (1977-01-01), Beck
patent: 4146963 (1979-04-01), Schreinemakers
patent: 4227877 (1980-10-01), Tureaud et al.
patent: 4368040 (1983-01-01), Weissman
patent: 4530662 (1985-07-01), Andersson et al.

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