| abstract |
(57) [Summary] [Problem] To make use of the properties of dental glass ionomer cement, such as biocompatibility and dentin adhesiveness, as it is, and to provide superior surface lubricity and film thickness. Glass powder for glass ionomer cement for use. SOLUTION: A fluoroaluminosilicate glass powder for dental glass ionomer cement is prepared with a specific gravity of 2.4. To 4.0, an average particle size of 0.02 to 4 μm, a BET specific surface area of 2.5 to 6.0 m 2 / g, more preferably a maximum particle size of less than 4 μm, and Al 3 + : 10 21 wt%, Si 4 +: 9 to 21% by weight, F-: 1 to 20 wt%, and those containing a total of 10 to 34 wt% of Sr 2 + and Ca 2 +. |