No alkali containing biocompatible glass ceramic with...

Details No alkali containing biocompatible glass ceramic with... No alkali containing biocompatible glass ceramic with...

C - Chemistry, Metallurgy

03

C

261/13

C03C 10/02 (2006.01) C03C 10/04 (2006.01) C03C 10/16 (2006.01)

Patent

CA 1266868

Abstract of the Disclosures A biocompatible glass ceramic comprises, by weight, 7 - 16% MgO, 20 - 45% CaO, 41 - 50% SiO2, 8 - 30% P2O5, 0 - 5% B2O3, 0 - 5% F2, and 0 - 10% Al2O3, and has a crystal structure where a number of fine crystals of apatite, wollastonite, and diopside are densely dispersed and interlace with one another in a glass phase. The glass ceramic is non-porous and has an increased mechanical strength of 2,000 Kg?f/cm2 without degradation of the chemical bonding with the bone of the living body. The glass ceramic contains no alkali and is chemically stable in the living body. The glass ceramic is useful for replacement materials of tooth roots and crowns as well as bones.

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