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Frequently asked question.

Q: What is zirconia?

  • Zirconia is another name for zirconium dioxide (ZrO2), an oxide of the metal zirconium.Zirconia blocks and discs are used by dental laboratories to mill zirconia copings, frameworks or full contour zirconia crowns and bridges. These blocks are formed unde

Q: How is zirconia block made ?

  • Manufacturing processAxial pressing method:The first operation is the axial pressing of the zirconia. Products are manufactured in standard shapes like discs, cylinders and blocks according to market requirements. It is however possible to comply with our

Q:Why use zirconia – is this clinician driven or manufacture…

  • The use of zirconia copings is driven by improved esthetics, biocompatibility, and durability as compared to PFM.Zirconium Oxide (ZrO2) has a history of providing stability and being highly biocompatible.With such nature, ZrO2 has been chose by the dental

Q: Are there differences among zirconia ceramics?

  • A: Differences among zirconia ceramics can occur with the level of purity of zirconia; grain size, trace elements and stabilizing compounds; and consistency of formulation. Differences can exist in shrinkage from batch to batch because of differences in t

Q: Zirconia substructures have high flexural strength, 900-12…

  • A: Flexural strength is typically performed on a three-point bend specimen and is a function of relative thickness of the zirconia and overlaid ceramic,but it would not exceed the flexural strength of the zirconia.

Q: Does zirconia ceramic degrade in strength intraorally in 5…

  • A: Yes, all-ceramic materials degrade in strengthover time - some more than others. Zirconia ceramic has an initial flexural strength of over 1200 MPa, so even if it degrades 5-10% or more, it is still significantly stronger than other ceramics.

Q: Does it takes longer to remove a zirconia crown with a bur…

  • A: Fine diamond burs can cut thru a zirconia crown just as fast as a PFM crown.

Q: Does shading or coloring zirconia ceramic reduce the stren…

  • A: Weakening of colored zirconia ceramic copings has not been observed.
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