FAQ
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Q: Do different zirconia products have different CTEs?
A: Yes, there are variations in coefficients of thermal expansion (CTE) among zirconia products as well as among overlay porcelains. Compatible systems must be used.
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A: Zirconia is stiff. Because it does not bend easily, it helps the weaker overlaid porcelain resist fracture.
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Q: What's a closed zirconia milling system and what is the benefit of an open system?
A: Open and closed architectures refer to the way scanners/design stations communicate with the mills and printers. An 'open' system provides a standardized file type and structure that can be understood by other open systems and equipment. A 'closed'-architecture (proprietary) system will only work with equipment that uses the same proprietary file types and s…
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A: Usually the overlaid porcelain bonds to a compatible porcelain wash material that is applied to the zirconia first.