Fabricated from a monolithic block of biocompatible zirconia, Aimzir™ is a remarkably durable restorative material, making it ideal for posterior restorations. Crafted using the finest in CAD/CAM technology for the most precise fit available, Aimzir crowns are gentle on opposing dentition and easily adjustable chairside.

Indications

Indicated for posterior crowns, bridges, inlays and onlays. An esthetic solution for bruxers and grinders when PFM metal occlusal/lingual or full-cast restorations are not desired or when patient lacks the preparation space for a PFM or has broken a PFM in the past. Zirconia can also be used for anterior teeth with a facial veneer of porcelain for improved esthetics.

Preparation

Shoulder preparation not needed, feather edge is okay. It is a conservative preparation similar to full-cast gold, so any preparation with at least 0.5 mm of occlusal space is accepted.

Minimum occlusal reduction of 0.5 mm; 1 mm is ideal.

Adjustments and polishing:

Adjust Full Contour Zirconia crowns and bridges using water and air spray to keep the restoration cool and to avoid micro-fractures with a fine grit diamond. If using air only, use the lightest touch possible when making adjustments. A football shaped bur is the most effective for occlusal and lingual surfaces (on anterior teeth); a tapered bur is the ideal choice for buccal and lingual surfaces.

Polish Full Contour Zirconia restorations with the porcelain polishing system of your choice.

Cementation

  • Resin Ionomer cement (RelyX or RelyX Unicem, 3M ESPE)
  • Maxcem Elite (Kerr)
  • Panavia F 2.0 (Kuraray) -ideal for short, tapered preparations
  • Glass ionomer cement (GC Fuji, GC America)

Tech Notes

Solid zirconia requires a cast gold type preparation.

Anteriors may have a facial veneer of porcelain but the occlusion will remain in 100 percent zirconia. Final Zirconia restorations are glazed to a smooth surface to reduce plaque accumulation.

Codes

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

Zirconia’s strength meets the esthetics of conventional porcelain on our Aimzir™ Facial Cutback. We mill a standard full-contour zirconia crown, then reduce the facial region to allow our ceramists to add a layer of porcelain. The result is a more lifelike restoration than conventional zirconia.

Indications

Full-Contour Zirconia crowns with micro cutback are indicated for anterior crowns and bridges of up to six units between teeth number 6 and 11 or 22 and 27. ¾ Crowns with microcut and porcelain faces are ideally suited for cosmetic restorations in the smile zone.

Contraindications

Full-Contour Zirconia crowns should not be used for posterior restorations, or in situations when preparation requirements cannot be achieved.

Preparation

Shoulder preparation not needed, feather edge is okay. It is a conservative preparation similar to full-cast gold, so any preparation with at least 0.5 mm of occlusal space is accepted.

Minimum occlusal reduction of 0.5 mm; 1 mm is ideal.

Adjustments and polishing:

Adjust FCZ crowns and bridges using water and air spray to keep the restoration cool and to avoid micro-fractures with a fine grit diamond. If using air only, use the lightest touch possible when making adjustments. A football shaped bur is the most effective for occlusal and lingual surfaces (on anterior teeth); a tapered bur is the ideal choice for buccal and lingual surfaces.

Polish FCZ restorations with the porcelain polishing system of your choice.

Cementation

  • Resin Ionomer cement (RelyX or RelyX Unicem, 3M ESPE)
  • Maxcem Elite (Kerr)
  • Panavia F 2.0 (Kuraray) -ideal for short, tapered preparations
  • Glass ionomer cement (GC Fuji, GC America)

Tech Notes

Solid zirconia requires a cast gold type preparation.

Anteriors may have a facial veneer of porcelain but the occlusion will remain in 100 percent zirconia. Final Zirconia restorations are glazed to a smooth surface to reduce plaque accumulation.

Codes

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

Crafted from a lithium-disilicate glass ceramic, IPS e.max® crowns offer the utmost translucency available from any restorative material. Because of their superior esthetics, e.max crowns are a perfect option for anterior restorations when esthetic concerns are paramount.

Indications

IPS e.max® should not be used on patients with malfunctional occlusion such as bruxers or clenchers. IPS e.max® should not be used as abutments for cast partials. IPS e.max® should not be used in situations when preparation requirements cannot be achieved. IPS e.max® is not indicated for Maryland-type bridges.

Preparation

Anterior full-coverage crowns require a chamfer or shoulder margin. A circular shoulder is prepared with rounded inner edges or a chamfer at an angle of 10-30°: the width of the shoulder/chamfer is approx. 1 mm. Facial reduction is 1.5 – 2 mm; 1 – 1.5 mm lingual contact clearance. Incisal reduction is 1.5 – 2 mm with rounded internal line angles, and an incisal edge at least 1mm wide to permit optimum milling of the incisal edge during CAD/CAM processing.

Posterior full-coverage crown requires a chamfer or shoulder margin. A circular shoulder is prepared with rounded inner edges or a chamfer at an angle of 10-30°: the width of the shoulder/chamfer is approx. 1 mm. Occlusal reduction is 1.5 – 2 mm: axial reduction (buccal, lingual and interproximal) is 1.5 mm with rounded internal line angles.

Cementation

For greatest strength, and where preparation allows for dry field (supra-gingiva margins), it is recommended to use adhesive bonding, such as VarioLink II (Ivoclar Vivadent) or similar dual cure materials (Insure, Cosmedent; Nexus, Kerr; Choice, Bisco, Inc.; Lute-It, Pentron).

For areas subgingival, or when a dry field cannot be achieved, Ivoclar Vivadent recommends a hybrid glass ionomer cement system with less than 0.5 percent expansion. (NOTE: Resin-reinforced glass ionomers (Advance, Vitremer) are not indicated for any all-ceramic restoration.)

Some recommended resin cements:

  • Vivaglass (Ivoclar Vivadent)
  • GC Fuji (GC America)
  • Ketec Cem (3M ESPE)
  • Panavia F (J. Morita)
  • C&B Metabond
  • Variolink (Ivoclar Vivadent)

Tech Notes

If adjustment is required on the ceramic, ALWAYS CEMENT OR BOND INTO PLACE BEFORE PROCEEDING, then use a fine diamond with water to keep the crown cool. To contour the crown, polish with a porcelain polishing wheel (Brassler, Shofu and Vident) and diamond polishing paste.

Caution: Do NOT attempt to fire porcelain. IPS e.max® ceramic requires specific stains and glaze, as well as precisely calibrated ovens at specific temperatures and vacuum settings. For best results, return crown for re-glaze firing to lab.

Codes

  • D2740 Crown
  • D2610 Inlay for 1 surface
  • D2620 Inlay for 2 surfaces
  • D2630 Inlay for 3 surfaces
  • D2962 Labial Veneer
  • D2783 Crown 3/4 Porcelain Ceramic (does not include veneers)

Available with your choice of alloy – non-precious, semi-precious, white and yellow high noble – our porcelain-fused-to metal restorations merge the strength of a cast substructure with the artisanal stacked porcelain. A classic restorative option, we still produce PFMs with the eye for aesthetics necessary when dealing with porcelain.

Indications

Our PFMs can be used for crowns and bridges (up to fourteen units). PFMs can be manufactured to non-precious, semi-precious, and yellow high noble copings and can be used in conjunction with cast partials and implants.

Preparation

The ideal preparation for PFMs is a chamfer margin preparation. If a porcelain labial margin is prescribed, then a shoulder margin preparation is required.

Feather-edge margin preparations are indicated for full-cast restorations.

Cementation

  • Panavia 21 – tin plated
  • Glass ionomer cement (GC Fuji, GC America)
  • Zinc Phosphate Polycarboxylate
  • Resin Ionomer cement (RelyX, 3M ESPE)

Tech Notes

If an adjustment is required on the ceramic, use a fine diamond with water and air to keep the crown cool.

To contour the ceramic, polish with a pink rubber wheel and diamond polishing paste (Brasseler, Shofu, Vident).

Codes

  • D2750 Crown Porcelain fused to high noble
  • D2751 Crown Porcelain fused to non-precious
  • D2752 Crown Porcelain fused to semi-precious
  • D6750 Crown Porcelain fused to high noble (bridge units)
  • D6751 Crown Porcelain fused to non-precious (bridge units)
  • D6752 Crown Porcelain fused to semi-precious (bridge units).

A zirconia substructure provides warmer, more lifelike tones when compared to conventional PFM. Our PFZ features the durability of a zirconia coping with the superior aesthetics of porcelain stacked by our master ceramists. With copings fabricated harnessing the precision of CAD/CAM technology, our PFZ seats easily and with little to no chairside adjustment.

Indications

A CAD/CAM substitute for traditional PFM our porcelain fused to zirconia can be used for anterior and posterior crowns, crowns over implants and bridges of up to fourteen units.

Preparation

The ideal preparation for PFZs is a chamfer margin preparation. If a porcelain labial margin is prescribed, then a shoulder margin preparation is required.

Feather-edge margin preparations are indicated for full-cast restorations.

Cementation

  • Resin Ionomer cement (RelyX or RelyX Unicem, 3M ESPE)
  • Maxcem Elite (Kerr)
  • Panavia F 2.0 (Kuraray) -ideal for short, tapered preparations
  • Glass ionomer cement (GC Fuji, GC America)

Tech Notes

If an adjustment is required on the ceramic, use a fine diamond with water and air to keep the crown cool.

To contour the ceramic, polish with a pink rubber wheel and diamond polishing paste (Brasseler, Shofu, Vident).

Codes

  • D2740 Crown - porcelain / ceramic substrate

The most highly biocompatible restorative option available, full-cast crowns are also forgiving on opposing dentition, making them an option for bruxing patients.

Indications

Full-cast restorations are indicated for single crowns as well as bridges anywhere in the mouth.

Inlays and onlays can also be fabricated as a full-cast restoration.

Preparation

Inlays and onlays can also be fabricated as a full-cast restoration.

Feather-edge margin preparations are indicated for full-cast restorations, but any margin preparation may be used.

Cementation

  • Panavia 21 (Must be tinplated if precious metal is used)
  • Glass ionomer cement (GC Fuji, GC America)
  • Zinc Phosphate Polycarboxylate Resin Ionomer cement (RelyX, 3M ESPE)

Tech Notes

All castings are made with a metal alloy, be it non-precious, semi-precious or precious metals. Alloys are classified by their content.

  • Base – contents include non-precious, Chrome Cobalt or Titanium
  • Noble – consists of 25 percent precious alloy
  • High Noble – consists of 60 percent precious metal with at least 40 percent being gold

Alloy type refers to the hardness and/or softness of the material.

  • Type I – Extra soft
  • Type II – Soft
  • Type III– Hard
  • Type IV – Extra Hard (Rigid)

Non-Precious, Noble 20, White High Noble – Type IV – Very hard and rigid. These crowns are more difficult to adjust and re-polish than alloys with a high gold content.

Full Cast 40 – Type III – Yellow high noble alloy. Brand name currently used is Argenco 40 HN.

Full Cast 52 HN – Type III – Yellow high noble alloy. Brand name currently used is Argenco 52.

Full Cast 75- Type III – Yellow high noble and is an upgrade from full cast 52. The gold is slightly more yellow in color. Brand name currently used Argenco 75.

Codes

  • D2790 Crown Full-Cast Hi-Noble Metal
  • D2791 Crown Full-Cast Predominantly Base Metal
  • D2792 Crown Full-Cast Noble Metal

A metal-free composite alternative to PFZ, Sculpture®/FibreKor® restorations are built using a durable FibreKor coping, which harnesses a fiber-reinforced composite for the strength of steel with strengths of nearly 1,000 MPa. On this base, we build a nano-hybrid ceramic Sculpture crown. Highly stain resistant and featuring low wear, these restorations are a perfect alternative to conventional bridges.

We produce our PMMA temporaries from the same STL files used to fabricate your patient’s final crown, providing patients an affordable provisional that mimics the occlusion and fit of the permanent crown.

Indications

Indicated for provisional splinted crowns and full-arch bridges. Cast-metal substructure is indicated when pontic span is greater than 3-units. Other indications include immediate smile makeovers, restoring lost vertical dimension, contoured healing for ovate pontics or anterior extractions, or in conjuction with perio treatment. Provisional crowns and bridges last up to six months. For a longer time frame, Transitional Crowns & Bridges would be indicated.

Preparation

No preparation is needed for provisionals. However, existing preparation of any type can be used.

Tech Notes

Can be fabricated with pre-operative or prepared models. All shade guides are compatible and we can stain provisionals to match.

Reinforcement Options

  • Wire reinforcement
  • Kevlar/Fiber Reinforcement
  • Cast Metal (non-precious) Substructure/Framework
  • RECOMMENDED RELINE MATERIAL
  • Cold-cured methyl methacrylate
  • Jet Acrylic
  • Cold Pac by Motloid
  • Palavit 55 by Kulzer

You should avoid any composites and ethyl methacrylates like Trim or Snap. Those materials only have a semi-chemical bond to the provisionals material.

When repairing broken provisionals chairside, only methyl methacrylate should be used. The customer should remove the glaze by roughing up the surface with a coarse bur. Then apply cold cured methyl methacrylate to the surface.

Reglazing Instructions

  • Roughen temps with pumice.
  • Rinse and dry with air.
  • Apply a thin layer of palaseal going in one direction.
  • Bench dry for 20 seconds (air dry).
  • Polymerize for 90 seconds with hand held curing unit (a light box works best, but hand held light can be used with 2 cycles of 90 seconds on each surface).

Codes

  • D2932 Prefabricated Resin Crown

  • D2970 Temporary Crown