| 摘要 |
<p>A photo-curable reparative material for dental use, which comprises a polymerizable monomer, an acylphosphine oxide (photopolymerization initiator) and a mixed inorganic filler, characterized in that the mixed inorganic filler comprises (A) amorphous inorganic particles having an average particle diameter of 0.1 to 1 νm, (B) spherical inorganic particles having an average primary particle diameter of 0.1 to 5 νm, and (C) fine inorganic particles having an average primary particle diameter of 0.1 νm or less in respective amounts such that {mA/(mB+mC)} is 0.2 to 3, {mB/(mB+mC)} is 0.5 to 0.99, {mC/(mB+mC)} is 0.01 to 0.5, wherein mA, mB and mC represent the masses of (A), (B) and (C), respectively. The reparative material has good operability and exhibits high fracture toughness and good surface lubricity when cured.</p> |
