Dentures and process for making the same

Details Dentures and process for making the same Dentures and process for making the same

1977-04-20

1978-03-21

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Dental shaping type

Denture forming

264 19, 264 51, 264213, 264214, 264221, 264225, 264255, B29C 500, B29D 900

Patent

active

040804127

ABSTRACT:
A denture consisting of teeth anchored in a gum member composed of a unitary mass of non-hydrophilic polyurethane elastomer, the tooth-holding portion of which is hard and the mouth-engaging portion of which is soft is prepared by first casting the teeth-holding portion about the teeth and then casting the gum holding portion onto the tooth-holding portion and curing the denture during which the gum-engaging portion and the tooth-holding portion become integrally chemically bonded into a unitary mass.

REFERENCES:
patent: RE28826 (1976-05-01), Ladney
patent: 2551812 (1951-05-01), Nelson
patent: 2934823 (1960-05-01), Preis
patent: 3241238 (1966-03-01), Kersten
patent: 3727309 (1973-04-01), Huey
patent: 3822238 (1974-07-01), Blair et al.

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