Method for producing orthodontic devices and appliances

Details Method for producing orthodontic devices and appliances Method for producing orthodontic devices and appliances

1985-09-19

1987-04-07

Page, Thurman K.

Coating processes

Electrical product produced

Welding electrode

427 2, 427 541, B05D 306, A01N 102

Patent

active

046560530

ABSTRACT:
A method for producing orthodontic devices and appliances having a highly accurate fit by building up a plurality of resin layers on a plaster cast comprising applying a first thin layer of a composition comprising a diurethanedimethacrylate prepared from 2,2,4-trimethylhexamethylenediisocyanate and 2-hydroxyethylmethacrylate, and a photopolymerization catalyst to the plaster cast and briefly exposing said thin layer to light whereby said thin layer is partially polymerized, successively applying at least one additional thin layer on said first thin layer and partially polymerizing each successive thin layer by brief exposure until the layer thickness and shape desired for the device or appliance are attained, and the shaped partially polymerized material is subsequently polymerized completely by exposure to light.

REFERENCES:
patent: 4105025 (1978-08-01), Wang et al.
patent: 4131114 (1978-12-01), Kirkpatrick et al.
patent: 4238522 (1980-12-01), Potts
patent: 4291087 (1981-09-01), Warburton et al.
patent: 4300968 (1981-11-01), Fottinger et al.
patent: 4316457 (1982-02-01), Liegeois
patent: 4340453 (1982-07-01), Noomen
patent: 4348427 (1982-09-01), Priola et al.
patent: 4393187 (1983-07-01), Boba et al.
patent: 4411931 (1983-10-01), Duong
patent: 4439480 (1984-03-01), Sachs et al.
patent: 4568558 (1986-02-01), Angrick et al.

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