Patent ID: 7351281
Filing Date: 2008-04-01
Classification: A61K,C04B

Abstract:
1. Powdered material, the binder phase of which mainly comprises a cement-based system, which powdered material has the capacity following saturation with a liquid reacting with the binder phase to hydrate to a chemically bonded ceramic material, suitable for dental purposes, wherein the binder phase comprises at least mainly of calcium aluminate cement and that it further comprises one or more glass additives that have a refractive index in visible light that deviates by 15% at most from the refractive index of the binder phase when the binder phase is hydrated, a majority of particles have a size greater than 1 μm and less than 80 μm and/or less than 300 nm, the whiteness value of the binder phase being greater than 70 according to ASTM E313, the powdered material giving the chemically bonded ceramic material translucence in the hydrated state, and wherein the glass additives are present at 10-45% by volume.