| 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. |