A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 6/02 (2006.01) A61K 6/083 (2006.01)
Patent
CA 2077734
A dental filling composition comprising a polymerizable monomer and an inorganic filler, characterized in that the inorganic filler comprises (A) 20 to 80 % by weight of spherical inorganic oxide particles with an average particle size of from 1.0 to 5.0 µm, and (B) 80 to 20 % by weight of spherical inorganic oxide particles which have a particle size range of at least 0.05 µm and less than 1.0 µm and at least 5 % by weight of which is in a particle size range of from 0.05 to 0.2 µm. The dental filling composition may have a high content of the inorganic filler and, upon curing, has good mechanical strength, good surface glass aid smoothness, low water absorption, and transparency compared to that of natural teeth, in which smaller particles are sufficiently packed in interstices among larger particles, and smaller particles serve also for the good transparency.
Hattori Eiji
Ikeda Michihiro
Ota Tetsuro
Sasaki Hiroyuki
Kanebo Ltd.
Mccarthy Tetrault Llp
Mitsubishi Chemical Corporation
Mitsubishi Kasei Corporation
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