Dental restorative material

Details Dental restorative material Dental restorative material

A - Human Necessities

61

K

400/7006, 400/70

A61K 6/08 (2006.01) A61K 6/06 (2006.01)

Patent

CA 1269790

IMPROVED DENTAL RESTORATIVE MATERIAL ABSTRACT OF THE DISCLOSURE In a dental restorative material comprising 20-30% by weight of a visible light polymerizable methacrylic ester monomeric system, from about 65-79% by weight of an inorganic filler and from about 1-5% by weight of collidal fumed silica; said inorganic filler having an average particle size diameter ranging from about 0.5 to 5 microns and said collidal fumed silica having an average particle size ranging from about 0.01 to about 0.05 micron, the improvement comprising subjecting the filler to a series of milling steps comprising (1) wet milling in aqueous medium having a pH of 5-7; (2) surface etch milling in an aqueous etchant medium and (3) a silanizing milling in a silane solution.

487760

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