Reusable plasterless dental articulator with disposable cast mou

Details Reusable plasterless dental articulator with disposable cast mou Reusable plasterless dental articulator with disposable cast mou

1996-05-15

1998-02-24

O'Connor, Cary E.

Dentistry

Apparatus

Work support

A61C 1102

Patent

active

057206139

ABSTRACT:
A dental articulator and method for manufacturing same for properly positioning upper and lower dental casts relative to each other. Upper and lower brackets are provided which accommodate disposable platforms that are permanently adhered to the casts. A coupling plate is removably coupled to one of the brackets for pivotal movement therebetween about a first axis. The coupling plate is removably coupled to the other bracket for pivotal movement therebetween about a second axis perpendicular to the first axis. The coupling plate also provides sliding movement with respect to the other bracket for adjusting a distance between the brackets. The brackets and coupling plates are made from a metal having sufficient rigidity so that, even upon repeated assembly and disassembly, an accurate bite relationship between the upper and lower dental casts is repetitively reproduced. In manufacturing the articulator, the two brackets and coupling plates are stamped or cut from sheet metal. Extensions of the brackets are folded to form supports for the brackets and the coupling assembly. The disposable platforms are extrusion molded from plastic.

REFERENCES:
patent: 613772 (1898-11-01), Moffitt
patent: 1324319 (1919-12-01), O'Keefe
patent: 2592288 (1952-04-01), Johnson
patent: 3078577 (1963-02-01), Prentki
patent: 3930312 (1976-01-01), Daub
patent: 4207677 (1980-06-01), Lampert
patent: 4252523 (1981-02-01), Gayso
patent: 4412822 (1983-11-01), Blechner
patent: 4619611 (1986-10-01), Shimbashi
patent: 4854868 (1989-08-01), Pitre
patent: 5007829 (1991-04-01), Farrell
patent: 5046949 (1991-09-01), Richardson

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