Dental composite material comprising aggregate
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United States of America Patent
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N/A
Issued Date -
Feb 21, 2002
app pub date -
Apr 24, 2001
filing date -
Apr 28, 2000
priority date (Note) -
Abandoned
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Abstract
ABSTRACT OF THE DISCLOSURE A dental composite material comprising (A) a polymerizable monomer, (B) a filler comprising at least one heat-treated aggregate of silica and at least one metal oxide other than silica, wherein the aggregate has an average particle size of 0.5-30 .mu.m, a refractive index of 1.46-1.65, a pore volume of 0.1-1.0 cc/g, a BET specific surface area of 50-500 m.sup.2/g, and a primary particle size of 1-250 nm, and (C) a polymerization initiator. The dental composite material of the present invention can satisfy various kinds of properties required as a dental composite material simultaneously.
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