The features of ZLS
High glass content
10% zirconia in the glass phase
High mean flexural strength
lithium silicate crystals
The unique microstructure of ZLS
Celtra - ZIRCONIA-REINFORCED LITHIUM SILICATE
The inclusion of 10% zirconium oxide ensures particularly high strength.
The crystallites formed are four to eight times smaller than lithium
disilicate crystallites. The result is an ultra-fi ne microstructure that
combines high average flexural strength with a high glass content.
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Celtra – ZIRCONIA-REINFORCED LITHIUM SILICATE
The result is a large number of very fine-grained
lithium crystallites, whose high glass content give
the material its excellent light-optical and mechanical
LITHIUM DISILICATE CERAMIC
The crystallites embedded in the glass phase are
2000–4000 nmin size and thus signifi cantly larger
than Celtra, infl uencing boththe light-optical and
mechanical properties of the material.