Glass ceramic, use thereof and denture

摘要

A glass ceramic, characterized in that it is a luecite glass ceramic containing luecite crystals and 0.1 to 1.4 wt % of a CeO2 component and it is substantially insusceptible to yellowing when the powder thereof is applied to the surface of an alloy containing silver and is welded by fusion. The glass ceramic is useful as a porcelain for use in preparing a denture excellent in appearance by piling it up on the surface of a metal frame and welding it by fusion.