초록 ▼

The present invention provides a dental composite which has the high strength required for load bearing restorations, yet maintains a glossy appearance, even after substantial wear. Through the use of particles having a mean particle size between about 0.05 .mu.m and about 0.50 .mu.m, the composite

The present invention provides a dental composite which has the high strength required for load bearing restorations, yet maintains a glossy appearance, even after substantial wear. Through the use of particles having a mean particle size between about 0.05 .mu.m and about 0.50 .mu.m, the composite is useful in stress bearing restorations and in cosmetic restorations. The structural filler used is typically ground to a mean particle size of less than 0.5 .mu.m and also includes a microfill having a mean particle size less than 0.05 .mu.m to improve handling and mechanical characteristics. The preferred dental composites maintain their surface finish even after substantial use and also have the strength properties of hybrid composite resins. The structural filler is ground, typically by agitator milling, to the preferred particle size.

대표청구항 ▼

[ What is claimed is:] [1.] A dental composite, comprising:a resin base; andabout 10% by volume to about 80% by volume filler consisting essentially of a ground structural filler and a microfiller,wherein the ground structural filler comprises between about 10% by volume and about 70% by volume of t

[ What is claimed is:] [1.] A dental composite, comprising:a resin base; andabout 10% by volume to about 80% by volume filler consisting essentially of a ground structural filler and a microfiller,wherein the ground 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 .mu.m and about 0.50 .mu.m, and wherein the ground structural filler contains less than 50% by volume of particles above 0.5 .mu.m in diameter, andwherein the microfiller comprises up to about 10.0% by volume of the composite and consists of particles of mean particle size of about 0.04 .mu.m or less.