Prepolymerized filler in dental restorative composite

Details Prepolymerized filler in dental restorative composite Prepolymerized filler in dental restorative composite

2005-05-10

2005-05-10

Yoon, Tae H. (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C523S113000, C523S116000, C523S118000, C523S217000, C106S035000, C433S228100

Reexamination Certificate

active

06890968

ABSTRACT:
A dental composite having high filler loading and low shrinkage thereby providing good strength and marginal integrity. Through the use of prepolymerized filler particles in combination with a structural filler and a nanofiller, the composite exhibits very low shrinkage and is useful in stress bearing restorations and in cosmetic restorations. The structural filler used is ground to a mean particle size of less than 0.5 μm and the nanofiller has discrete particles of a mean particle size less than 100 nm to improve handling and mechanical characteristics. The prepolymerized filler particles also allow for less viscosity and better handling characteristics of the composite.

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