Dental prosthesis

Details Dental prosthesis Dental prosthesis

1983-03-24

1984-09-04

Hayes, Lorenzo B.

Dentistry

Prosthodontics

Denture liner or cushion

433171, 433199, 433201, 523120, A61K 608

Patent

active

044694776

ABSTRACT:
A dental prosthesis which has the whole or part of its surface which is in contact with the mucous membrane of the mouth coated with a soft, hydrophilic polyurethane is provided. The polyurethane coating has a thickness of from 0.1 to 3.00 mm when hydrated. The polyurethane is applied to the prosthesis from a non-aqueous solvent in an anhydrous state and is subsequently hydrated by soaking in water. The polyurethane is a reaction product of a mixture of polyether polyols and a di-isocyanate using an alkenediol as a chain extender. The polyurethane contains from 5 to 40% water when hydrated.

REFERENCES:
patent: 3822238 (1974-07-01), Blair et al.
patent: 3930076 (1975-12-01), Kliment
patent: 4088500 (1978-05-01), Fairbanks et al.
patent: 4251215 (1981-02-01), May et al.
Bezc., J. Pros. Dent., 1970, 23 (4), pp. 396-406.

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