Compositions: ceramic – Ceramic compositions – Devitrified glass-ceramics
Patent
1986-12-17
1991-06-18
Lander, Ferris H.
Compositions: ceramic
Ceramic compositions
Devitrified glass-ceramics
C03C 1002
Patent
active
050249738
ABSTRACT:
A crystallized glass tooth crown is described, consisting essentially of from 40 to 75 mol % component X, from 20 to 55 mol % component Y and from 0.1 to 10 mol % component Z, wherein
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Kondo Kazuo
Okuyama Masahiko
Lander Ferris H.
NGK Spark Plug Co. Ltd.
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