Celtra Press – The Material (Part 2)

//Celtra Press – The Material (Part 2)

Celtra Press – The Material (Part 2)

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Futer Sirona 2

 

THE UNIQUE MICROSTRUCTURE OF ZLS

The outstanding chemical properties of ZLS provide a unique microstructure, allowing for exquisite beauty, strength and speed. Celtra delivers exceptional performance, including optimized balance of translucency and opalescence, reduced crystal size which serves to increase flexural strength, and a fine microstructure for processing speed efficiencies.

 

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We are very proud to have developed an innovative material with Celtra Press that fully meets our ambitious goals.

Dr. Markus Vollmann

Director Research & Development

Dentsply Sirona Prosthetics

 

COMPARISON OF MICROSTRUCTURES

 

Celtra – ZIRCONIA-REINFORCED LITHIUM SILICATE

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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-fine microstructure that combines high average flexural strength with a high glass content. This has positive effects on the light-optical and mechanical properties of the material.

 

LITHIUM DISILICATE CERAMIC

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The crystallites embedded in the glass phase are 2000–4000 nm in size and thus significantly larger than Celtra, influencing both the light-optical and mechanical properties of the material. This is associated with lower light conductivity and requires a greater polishing effort.

 

STEP BY STEP MOVIE

2017-01-30T12:24:51+00:00