Dental resin-reinforced glass ionomer cement powder-liquid type

摘要

PROBLEM TO BE SOLVED: To provide a powder liquid-type dental resin-enriched glass ionomer cement excellent in adhesiveness to dentine and in storage stability.SOLUTION: A powder liquid-type dental resin-enriched glass ionomer cement comprises a powder material comprising a fluoroaluminosilicate glass particle (A) and a polyalkenoic acid powder (B); and a liquid material comprising a polymerizable monomer having an acidic group (C), a polymerizable monomer having no acidic group (D), water (E), and at least one basic compound (F) selected from the group consisting of hydroxides of alkali metals, salts of an alkali metal with a weak acid having pKa 3 or more, and aliphatic amines; and also a chemical polymerization initiator (G) is comprised in the powder material and/or the liquid material. The weight ratio of the fluoroaluminosilicate glass particle (A) to the polyalkenoic acid powder (B) in the powder material is in the range of 70:30 to 99:1 and the pH of the liquid material is in the range of 4 to 10.