Lithium silicate materials
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1. A lithium silicate dental glass-ceramic article comprising a metastable machinable phase comprising lithium metasilicate as the main crystalline phase, wherein the glass-ceramic comprises SiO2, Li2O, and P2O5 or another nucleation agent and exhibits a biaxial strength of about 80 to about 180 MPa.
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Abstract
Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.
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- 1. A lithium silicate dental glass-ceramic article comprising a metastable machinable phase comprising lithium metasilicate as the main crystalline phase, wherein the glass-ceramic comprises SiO2, Li2O, and P2O5 or another nucleation agent and exhibits a biaxial strength of about 80 to about 180 MPa.
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