ZirCeram®
ZirCeram® is crafted out of layered ceramics that perfectly mimics natural dentition. Utilizing the latest CAD/CAM equipment, we craft a zirconia coping that has optimal fit and margins. In addition to incredible anterior esthetics, these ZirCeram® restorations offer remarkable strength (1300+ MPa). Thanks to its unparalleled translucency, ZirCeram® is virtually indistinguishable from natural dentition.
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.
Contraindications
- Attachment cases
- Cases with less than 1 mm clearance
- Bruxism
- Patients who have broken a PFM crown
- Cases that require bonding
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).
ADA Insurance Codes
- D2740 Crown - porcelain / ceramic substrate