Zirconia

With a four-year clinical history of working with full-contour zirconia and more than 300,000 crowns seated, NDX provides an economical, efficient solution for posterior restorations when strength is at a premium. With these virtually unbreakable all-ceramic crowns, you can provide your patients the strength to withstand severe parafunctional activity and avoid metal restorations. The full-contoured zirconia 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.

Znext™ Anterior

Znext™ Anterior represents a revolutionary advancement in solid zirconia material for anterior and posterior restorations. You can provide your patients with a restoration that compares to e.max® in aesthetics, with nearly twice the strength!  Znext™ Anterior is a full-contour solid zirconia crown or bridge restoration with no porcelain overlay. It is glazed with a smooth wear-kind surface optimized for use in the aesthetic zone with natural translucency and internal color. Znext™ Anterior crowns are precision-milled and sintered for 12 hours at 1450⁰ C for a homogenous structure that is significantly stronger than lithium disilicate.

Znext™ Anterior Advantages

  • Improved translucency and intrinsic color as compared to BruxZir® zirconia
  • Available for single units and 3-unit bridges including molar abutment
  • Flexural strength of 770 MPa – almost twice the strength of e.max
  • 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

  • Slight chamfer margin preferred for best result
  • A more conservative preparation than is required for e.max
  • 1.5-mm of occlusal space 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:
  1. Try the Znext™ Anterior restoration in the patient’s mouth;
  2. Rinse saliva out of the restoration with water;
  3. Place Ivoclean in restoration for 20 seconds, rinse and dry;
  4. Apply primer and then cement with product of your choice.
We can accept your digital intra-oral scans for Znext™ Anterior restorations. 
Call for information on how to receive accurate Znext™ restorations without a model for an efficient workflow that can save your practice time and money!

Dental Insurances Codes

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

Znext™ FCZ

Znext™ FCZ (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. Znext™ FCZ is a full contour zirconia 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.  Znext™ FCZ is sintered for 12 hours at 1580⁰ C, resulting in a homogenous and virtually indestructible restoration.

Znext™ 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
  • Improved gradation of color as compared to BruxZir® zirconia
  • 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:
  1. Try in Znext™ restoration;
  2. Rinse saliva out of restoration with water;
  3. Place Ivoclean in restoration for 20 seconds, rinse and dry;
  4. Apply Primer and then cement with product of your choice.
We can accept your digital intra-oral scans for Znext™ FCZ restorations. Call for information on how to receive accurate Znext™ 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

Znext™ Layered

By integrating the best-in-class CAD/CAM systems, we have created a zirconia restoration that delivers big on price, fit, strength and aesthetics. Using a layer of premium feldspathic porcelain over an anatomically supported framework, Znext™ Layered zirconia will meet your high standards for shade reproduction and lifelike translucency. In addition, this world-class restoration will reduce chair time and save your practice money … while you deliver superb results to your patients.

Znext™ Layered Advantages

  • Highest flexural strength anatomically-supported substructure in its class
  • No black lines or gingival graying. Semi-transparent with a high opacity to mask underlying tooth discoloration, metal cores and implant abutments
  • Reduction in seating time due to precise CAD/CAM internal fit and contact adaptation
  • High biocompatibility for improved tissue health and for patients with metal sensitivity
  • Use your preferred cementation material and protocol
  • Excellent shade reproduction and wear-kind to opposing dentition

Znext™ Layered Indications

  • Crowns and bridges (unlimited span)
  • Restorations over implants
  • Double-abutments and splinted restorations
  • Shade compatibility when used in combination with Znext™ Anterior and e.max®

Znext™ Layered Contraindications

  • Inlays and onlays
  • Veneers

What to Send

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

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:
  1. Try the Znext™ Layered restoration in patient’s mouth;
  2. Rinse saliva out of restoration with water;
  3. Place Ivoclean in restoration for 20 seconds, rinse and dry;
  4. Apply Primer and then cement with product of your choice.
We can accept your digital intra-oral scans for Znext™ Layered restorations.
Call for information on how to receive accurate Znext™ 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

PFZ

What is PFZ?

An all-ceramic restoration with a zirconia core and a porcelain overlay. An alternative to PFM’s, the PFZ is more aesthetic than the total zirconia Znext™ restoration and 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

BruxZir®

Indications

  • Ideal for bruxers and grinders who have destroyed other restorations
  • Posterior restorations
  • An esthetic alternative to posterior PFMs with metal occlusals and full-cast crowns

Contraindications

  • Not desirable for anterior esthetics

Preparation

  • Any margin preparation acceptable; slight chamfer preferred
  • Conservative preparation similar to a full cast gold
  • 1.0mm of occlusal space is ideal, however a prep with at least 0.75mm is acceptable

Adjusting and Polishing

  • Use a fine grit diamond with copious amounts of water and air spray to keep the restoration cool and to avoid micro-fractures.
  • Always polish post-adjustment with porcelain polishing system
    Recommended: Axis BruxZir® Adjustment and Polishing Set LS-7579 available from your dealer

Cementation Recommendations

  • Ceramir® Crown & Bridge or a resin-reinforced glass ionomer cement such as RelyX™ Luting Cement or GC Fuji Plus™
  • To increase retention on short, tapered preparations, remove saliva contamination with Ivoclean paste (Ivoclar Vivadent) and use self adhesive resin cements such as RelyX Unicem (3M Espe) or SpeedCEM (Ivoclar Vivadent)

Removing a BruxZir® Crown

  • Recent research by Clinical Research Associates (CRA) indicates that bur performance was based more on brand than on grit or shape. The top performing burs were: Premier Two Striper [770.8Z, 770.8C, 770.8F], Midwest Diamonds [856 Fine/Coarse]. For a cost -effective option, try: Microcopy NeoDiamond [1116.8C, 1116.8F] (CRA July, 2012)
  • Use plenty of water. Apply firm pressure in repeated, short, on-off sequence.
  • Cut through the crown facial to lingual and use crown spreader. Pieces normally come off in large chunks.

Medical Insurance Codes

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