Dental material

Details Dental material Dental material

1997-04-28

1999-02-09

Merriam, Andrew E. C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523115, 524264, 524176, 524443, 524450, 501 81, 501 66, 501 68, C08K 334, A61K 608

Patent

active

058695486

ABSTRACT:
A dental material comprising a porous ceramics formed into an artificial tooth, an inlay, an onlay, a crown, a crown bridge or into a block shape suitable for CAD/CAM, sintered, having communicating holes, and impregnated with a resin. A porous ceramics formed from a network-forming oxide is applicable, and an intermediate oxide and a network-modifying oxide may also be adopted. The porous ceramics should preferably have a porosity within a range of from 0.5 to 70%. The resin should preferably a polymer of a monomer and/or oligomer containing at least an ethylenic double bond. Prior to impregnation of the porous ceramics with the resin, the porous ceramics should preferably be subjected to a coupling treatment.

REFERENCES:
patent: 4314380 (1982-02-01), Mivata et al.
patent: 4375967 (1983-03-01), Schaefer
patent: 4381918 (1983-05-01), Ehrnford
patent: 4412015 (1983-10-01), Lustgarten et al.
patent: 5676745 (1997-10-01), Kelly et al.

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