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.
Cases with less than 1 mm clearance
Patients who have broken a PFM crown
Cases that require bonding.
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.
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)
For facial reduction three wheel diamond depth cutter should be used for orientation grooves. For proximal reduction - round end tapered diamond bur is used as an extension for facial reduction.
D2740 Crown - porcelain / ceramic substrate