Patent ID: 6890968
Filing Date: 2005-05-10
Classification: A61K

Abstract:
1. A dental composite, comprising: a polymerizable resin base; and about 10% by volume to about 80% by volume filler consisting essentially of a structural filler, a prepolymerized filler, and a nanofiller, wherein the structural filler comprises between about 10% by volume and about 70% by volume of the composite and consists of ground particles of mean particle size between about 0.05 μm and about 0.50 μm, and wherein the ground structural filler contains less than 50% by volume of particles above 0.5 μm in diameter, wherein the prepolymerized filler comprises at least about 1% by volume of the composite and consists of an inorganic portion and a polymerized organic resin portion, and wherein the nanofiller comprises at least about 0.01% by volume of the composite and consists essentially of discrete, non-aggregated particles of mean particle size less than about 100 nm.