Impression tray for a dentate human jaw

Details Impression tray for a dentate human jaw Impression tray for a dentate human jaw

1986-05-09

1987-08-04

Peshock, Robert

Dentistry

Prosthodontics

Impression taking or bite determination

A01C 900

Patent

active

046843434

ABSTRACT:
An impression tray for a dentate human jaw having a mobile mucosa and a stationary mucosa with a linear action boundary between the mucosae, the tray having an envelope which in plan follows the U-shape of the dental arch of the jaw and which has a U-shaped trough cross-section near the dental arch, the envelope having a buccal edge and a lingual edge or a palatal edge, the buccal edge and the lingual or palatal edge terminating substantially in the region of the mobile mucosa, the envelope being fillable with an impression material and being pressable onto the jaw. The U-shaped trough cross-section of the envelope extends around the associated dental arch and the stationary mucosa at a distance from them of less than 5 mm, preferably approximately 1 mm. The buccal edge and the lingual edge or palatal edge are pressable onto the mobile mucosa as a sealing strip beyond the action boundary near the mobile mucosa at least with the mobile mucosa mobilized. A narrow gap of, for example, at most 1 mm width can be left in places.

REFERENCES:
patent: 3619903 (1971-11-01), Schreinemakers
patent: 3690004 (1972-09-01), Frush
patent: 3878610 (1975-04-01), Coscina
patent: 4085507 (1978-04-01), Lehn et al.

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