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Zirconia

Zirconia

With an extensive clinical history of working with Full Contour Zirconia (FCZ) and more than 300,000 crowns seated, NDX provides an economical, efficient solution for posterior restorations when strength is a must. With these all-ceramic crowns, you can provide your patients with the strength to withstand severe parafunctional activity and avoid metal restorations. The FCZ crown or bridge contains no porcelain overlay. It is glazed with a smooth surface and functions optimally in the posterior. Benefits include: superior strength, a smooth metal-free finish to the gum line, biocompatible medical-grade zirconia and CAD/CAM fabrication for a consistent fit.

Full-Contour Zirconia Zirconia Layered

Full-Contour Zirconia

Full-Contour Zirconia is a new option for posterior restorations. With these virtually unbreakable all-ceramic crowns, you can provide your patients with the strength to withstand severe para-functional activity while avoiding metal-based restorations. Full-Contour Zirconia is a crown or bridge material that is solid, with no porcelain overlay. It is glazed with a smooth wear-kind surface and engineered specifically for posterior restorations.  Full-Contour Zirconia is sintered for 12 hours at 1580⁰ C, resulting in a homogenous and virtually indestructible restoration.

Full-Contour Zirconia Advantages

  • Ideal for patients with bruxism and parafunction who have destroyed other restorations
  • An aesthetic alternative to posterior PFMs with metal occlusals and full-cast crowns
  • Available for single units and bridges with no span limitation
  • Flexural strength of 1100 MPa
  • Biocompatible medical-grade zirconia
  • Monolithic structure makes the restoration nearly chip-proof
  • Fabricated using CAD/CAM technology for precision fit and marginal accuracy

Cementing Recommendations

  • Resin-reinforced glass ionomer cement: RelyX (3M ESPE), Fuji Plus (GC America)
  • Resin cements for short or over-tapered preparations: Unicem (3M ESPE)
  • Ceramir C & B (Doxa)

Prep requirements

  • Feather-edge or slight chamfer margin preferred
  • A conservative preparation similar to full-cast gold is possible due to high strength
  • 1.0mm of occlusal reduction is ideal

Seating recommendations

Research has shown that saliva contamination can inhibit the bond of solid zirconia and zirconia oxide copings. To successfully remove saliva, it is suggested that after try-in and before priming, the crown should be cleaned with Ivoclean, a zirconia oxide solution from Ivoclar-Vivadent.

The suggested protocol is:

  • Try in Full-Contour Zirconia restoration;
  • Rinse saliva out of restoration with water;
  • Place Ivoclean in restoration for 20 seconds, rinse and dry;
  • Apply Primer and then cement with product of your choice.

We can accept your digital intra-oral scans for Full-Contour Zirconia restorations. Call for information on how to receive accurate Full-Contour Zirconia restorations without a model for an efficient workflow that can save your practice time and money!

Dental Insurance Codes

  • D2740 Crown - Porcelain/Ceramic Substrate
  • D6245 Pontic Porcelain/Ceramic
  • D6740 Abutment Crown Porcelain/Ceramic

Zirconia Layered

An all-ceramic restoration with a zirconia core and a porcelain overlay. An alternative to PFM’s, the Zirconia Layered can be prescribed anywhere in the mouth. By integrating the best of class CAD/CAM systems, NDX has created a crown that delivers on price, fit, strength, and aesthetics.

Advantages

  • Scanned, designed and milled for a precision fit
  • A perfection solution in anterior and posterior
  • Metal free alternative to PFM’s
  • Predictable price - No volatile gold costs.
  • Large span bridges available
  • Conventional cementation. Use your favorite cement.
  • Zirconia strength:
    • 2x stronger than alumina ceramics
    • 5x stronger than conventional glass ceramics
    • Strength of a PFM
  • Aesthetics of an all ceramic:
    • Natural translucency
    • No black oxidation lines or gingival graying

Contraindications

  • Beveled, feathered or knife-edge margins
  • Tight inter-occlusal space where core may be exposed

Prep requirements

  • 2mm occlusal clearance
  • 1mm deep, 360 degree chamfer margin

It is important to remember that scanning software and milling equipment will not reproduce sharp angles, points, or edges on a prep.

What to send

  • Upper and lower models or impressions
  • Shade
  • Bite registration

Medical Insurance Codes

  • D2740 - Crown Porcelain/Ceramic