Fiber filled dental porcelain

Details Fiber filled dental porcelain Fiber filled dental porcelain

1987-05-21

1988-12-27

Lieberman, Paul

Dentistry

Method or material for testing, treating, restoring, or...

Crown

4332021, 4332121, 4332221, 4332281, 501 17, 501 38, A61C 508

Patent

active

047938099

ABSTRACT:
Improved dental porcelain compositions and resultant fused porcelain dental restorations are provided which exhibit enhanced strength properties as compared with conventional porcelains. The fiber-filled porcelain compositions of the invention are supplemented with zirconium oxide ceramic fibers in relatively minor amounts of less than 5% by weight. The reinforcing fibers are advantageously predominantly zirconium oxide, and have a relatively short average length of from about 1/32 to 1/4 of an inch. These fibers are normally randomly oriented and homogeneously dispersed throughout the fiber-filled porcelain composition, in order to give a reinforcing fiber network. A completed restoration in accordance with the invention would typically include a core portion formed of the fiber filled porcelain, with the outer portion of the restoration being fabricated from conventional non-fiber reinforced porcelain.

REFERENCES:
patent: 407145 (1889-07-01), Anderson
patent: 407147 (1889-07-01), Anderson
patent: 2533899 (1950-12-01), Ryner
patent: 3069773 (1962-12-01), Saffir
patent: 3094385 (1963-06-01), Brisbin et al.
patent: 3271173 (1965-09-01), Lockhart et al.
patent: 3381918 (1983-05-01), Ehrnford
patent: 3503128 (1970-03-01), Boyd et al.
patent: 3662405 (1972-05-01), Bortz et al.
patent: 3795524 (1971-03-01), Sowman
patent: 3865917 (1975-02-01), Galasso et al.
patent: 3905047 (1975-09-01), Long
patent: 3947534 (1976-03-01), Mansmann
patent: 3950478 (1976-04-01), Stuart et al.
patent: 3953560 (1976-04-01), Klein
patent: 4131597 (1978-12-01), Bluethgen et al.
patent: 4230455 (1980-10-01), Hidaka et al.
patent: 4259072 (1981-03-01), Hirabayaski et al.
patent: 4321042 (1982-03-01), Scheicher
patent: 4431451 (1984-02-01), Mabie et al.
patent: 4437191 (1984-03-01), Zwaag et al.
patent: 4503157 (1985-03-01), Hatahira
patent: 4516276 (1985-05-01), Mittelmeier et al.
patent: 4543345 (1985-09-01), Wei
McLean, J. W., The Science and Art of Dental Ceramics, vol. 1: The Nature of Dental Ceramics and their Clinical Use, pp. 95-98, 105 (1979).
Derand, T., Reinforcement of porcelain crowns with silicon carbide fibers, The Journal of Prosthetic Dentistry, vol. 43, No. 1 (Jan. 1980).
Milewski, J. V., Efficient Use of Whiskers in the Reinforcement of Ceramics, Advanced Ceramic Materials, vol. 1, No. 1, pp. 36-41 (1986).
Zircar Fibrous Ceramics, Zirconia Bulk Fibers Type ZYBF2, Zircar Products, Inc., Technical Data Bulletin No. ZPI-210 (Nov. 1, 1978).

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