Dental restorative composition

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United States of America Patent

PATENT NO 9993394
SERIAL NO

15119053

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Abstract

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Provided is a dental restorative composition that has good handling properties when in the form of a paste having yet to be cured and that has light diffusion ability and transparency when in the form of a cured product. The dental restorative composition includes a polymerizable monomer, a polymerization initiator, an inorganic filler (C) having an average particle diameter of 0.1 to 1 μm, an organic-inorganic composite filler (D) having an average particle diameter of 1 μm or more and less than 10 μm, and an organic-inorganic composite filler (E) having an average particle diameter of 10 to 50 μm. An absolute value of a difference between a refractive index (Cd) of the inorganic filler (C) and a refractive index (Ad) of a polymer of the polymerizable monomer is 0.01 or less, an absolute value of a difference between the refractive index (Ad) and one of a refractive index (Dd) of the organic-inorganic composite filler (D) and a refractive index (Ed) of the organic-inorganic composite filler (E) is 0.01 or less, and an absolute value of a difference between the refractive index (Ad) and the other of the refractive index (Dd) and the refractive index (Ed) is 0.03 or more.

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Patent Owner(s)

Patent OwnerAddress
KURARAY NORITAKE DENTAL INC1621 SAKAZU KURASHIKI-SHI OKAYAMA 7100801 ?7100801

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kawana, Michiya Tainai, JP 3 37
Kita, Hirotaka Tainai, JP 5 43
Terakawa, Eiichi Tainai, JP 10 118

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