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DENTAL RESTORATIVE MATERIAL
专利权人:
Nobuyuki Ishizaka;Junichiro Yamakawa;Tatsuya Yamazaki
发明人:
Nobuyuki Ishizaka,Tatsuya Yamazaki,Junichiro Yamakawa
申请号:
US14127214
公开号:
US20140206792A1
申请日:
2012.06.22
申请国别(地区):
US
年份:
2014
代理人:
摘要:
The present invention discloses a dental restorative material comprising 10-50 mass % of (A) a polymerizable monomer, 5-80 mass % of (B) an organic-inorganic composite filler which is prepared by dispersing an inorganic fine filler having an average particle diameter of 1 μm or smaller in an organic matrix and has an average particle diameter of 5.0-50 μm, and 10-60 mass % of (C) a third component, i.e., an inorganic filler having an average particle diameter of 1.1-5.0 μm, wherein the absolute value of the difference between the refractive index [nC] of the inorganic filler (C) and the refractive index [nB] of the organic-inorganic composite filler (B) (i.e., nC−nB) is 0.005-0.07 at 32° C. and the absolute value of the difference between the refractive index [nA] of the cured product of the polymerizable monomer (A) and the refractive index [nC] of the inorganic filler (C) (i.e., nA−nC) is 0.005-0.05 at 32° C.
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