METHOD FOR PRODUCING ACID-REACTIVE GLASS POWDER, ACID-REACTIVE GLASS POWDER OBTAINED BY THE PRODUCTION METHOD, AND DENTAL GLASS IONOMER CEMENT COMPOSITION CONTAINING THE SAME

A method for producing an acid-reactive glass powder, an acid-reactive glass powder obtained by the method, and a dental glass ionomer cement composition comprising the acid-reactive glass powder. The dental glass ionomer cement composition has good mixing property, a sufficient working time, and si...

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Bibliographische Detailangaben
Hauptverfasser:	NISHIMURA, Manami, KIMOTO, Katsuya, ITAGAKI, Takuma, SAKAMOTO, Shuji
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS
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Beschreibung
Zusammenfassung:	A method for producing an acid-reactive glass powder, an acid-reactive glass powder obtained by the method, and a dental glass ionomer cement composition comprising the acid-reactive glass powder. The dental glass ionomer cement composition has good mixing property, a sufficient working time, and simultaneously can make the dental glass ionomer cement composition exhibit superior mechanical properties. More specifically, a method for producing an acid-reactive glass powder wherein an acid-reactive glass powder having a range of 2 to 10 μm of a 50% particle size is obtainable by pulverizing a large-particle-size acid-reactive glass powder having a range of 250 to 3000 μm of a 50% particle size in a state where a small-particle-size acid-reactive glass powder having a range of 1 to 5 μm of a 50% particle size coexists.