Methods of forming dental composites and compositions for reduced shrinkage stress

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United States of America Patent

PATENT NO 10780026
APP PUB NO 20190224081A1
SERIAL NO

15898933

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Abstract

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A method of forming a dental composite includes photopolymerizing a dental composition. The dental composition includes a free-radically polymerizable (meth)acrylate resin, 75 percent by weight or greater of filler particles, and about 0.005 percent to about 5 percent by weight of at least one polymerizable stable radical. The photopolymerizing forms the dental composite such that the dental composite has a flexural modulus of about 9500 MPa or greater and the polymerizable stable radical reduces shrinkage stress of the dental composite caused by the photopolymerizing by 10% or greater. A method of forming a dental composite composition includes combining a free-radically polymerizable (meth)acrylate resin, 75 percent by weight or greater of filler particles, and about 0.005 percent to about 5 percent by weight of at least one polymerizable stable radical to form the dental composite composition.

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Patent Owner(s)

Patent OwnerAddress
DENTSPLY SIRONA INCPENNSYLVANIA USA PENNSYLVANIA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jin, Xiaoming Middletown, US 60 211
Klee, Joachim E Radolfzell, DE 112 462
Koltisko, Bernard Milton, US 12 48
Lu, Hui Magnolia, US 89 730

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