POROUS, SILICATE, CERAMIC BODY, DENTAL RESTORATION AND METHOD FOR THE PRODUCTION THEREOF
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Abstract
The present invention relates to a porous, silicate, ceramic body, possibly with different colors, with a first density, which can be sintered into a silicate, ceramic body with a second density, wherein the ratio of the first density to the second density is 2/5 to 98/100, and the three-point bending strength of the porous, silicate ceramic body with a first density, measured according to ISO 6872, amounts to 25 to 180 MPa.
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Citations
20 Claims
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1-15. -15. (canceled)
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16. A process for preparing a dental restoration comprising the steps of
partially sintering a metal-oxide containing green body to obtain a metal-oxide containing porous silicate-ceramic body having a first density and an ISO 6872 three-point bending strength of 25-180 MPa, milling the porous silicate-ceramic body to a precursor having the dental restoration shape, and dense-sintering the precursor to obtain a dental restoration having a second density such that the first-density/second-density ratio is 2/5-98/100.
Specification