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

Provided are a method for producing an acid-reactive glass powder that, when used for a dental glass ionomer cement composition, has good mixing property and a sufficient working time and simultaneously can make the dental glass ionomer cement composition exhibit superior mechanical properties, an a...

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Bibliographische Detailangaben
Hauptverfasser:	NISHIMURA, Manami, KIMOTO, Katsuya, ITAGAKI, Takuma, SAKAMOTO, Shuji
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS HUMAN NECESSITIES HYGIENE JOINING GLASS TO GLASS OR OTHER MATERIALS MEDICAL OR VETERINARY SCIENCE METALLURGY MINERAL OR SLAG WOOL PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS
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Beschreibung
Zusammenfassung:	Provided are a method for producing an acid-reactive glass powder that, when used for a dental glass ionomer cement composition, has good mixing property and a sufficient working time and simultaneously can make the dental glass ionomer cement composition exhibit superior mechanical properties, an acid-reactive glass powder obtainable by the production method, and a dental glass ionomer cement composition comprising the acid-reactive glass powder. More specifically, provided are a method for producing an acid-reactive glass powder characterized in that 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; an acid-reactive glass powder obtained by the production method; and a dental glass ionomer cement composition comprising the acid-reactive glass powder.