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Abstract

A glass ceramic is provided to address the challenge that bioceramics known to be used for bone defect repair often lack good hardness, proper degradability, low post-implantation stimulation to surrounding tissues and promotion of bone defect repair in combination. The glass ceramic comprises a major crystallized phase, which is either diopside or wollastonite; and a minor crystallized phase, which comprises any one or more selected from the group consisting of diopside, wollastonite, lithium disilicate, silicon dioxide, lithium metasilicate and Li₂Ca₂Si₅O₁₃. In the glass ceramic, the molar ratio of elemental calcium, elemental lithium and elemental silicon is 1:x:2, in which x is from 0.05 to 1. However, when the major crystallized phase is diopside, the minor crystallized phase does not comprise diopside; and when the major crystallized phase is wollastonite, the minor crystallized phase does not comprise wollastonite. The present invention also comprises a method for manufacturing the glass ceramic.

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First Claim