Dental impression tray

Details Dental impression tray Dental impression tray

1976-10-19

1979-04-03

Kinsey, Russell R.

A61C 900

Patent

active

041469631

ABSTRACT:
A perforated tray for taking an impression of an upper or a lower jaw, which may be dentulous or edentulous. In this tray all perforations are shaped as elongated slits. Further the slits may extend at least approximately transversely to the vestibular outline of the tray when viewed from above or from below. The part of the tray, which covers in situ the top of the crest of the jaw, or the masticatory surfaces of the teeth, may be left unperforated. In a tray for taking an impression of an upper jaw, the part of the tray which covers in situ the torus palatinus lying in the center of the palate, may be left unperforated.

REFERENCES:
patent: 1445499 (1923-02-01), Douglass
patent: 1505862 (1924-08-01), Carroll, Sr.
patent: 2529429 (1950-11-01), Spiro
patent: 3473225 (1969-10-01), Deuschle et al.

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