Notice: The laboratory new hours are M-F 8am-2pm where pick-up/drop-off is available anytime. No face-to-face services are offered currently (including custom shade & stain). Route driver delivery/pick-up service is available once daily. "Same-day" denture repair/reline is available for pick-up at the laboratory or delivered next day.

Traditional Hand Layered Zirconia

Traditional Hand Layered Zirconia

Nakanishi offers layered zirconia restorations as a superior alternative to traditional PFM or full cast crowns. Our team crafts these crowns by layering highly esthetic porcelain over a zirconia substructure. This restoration provides comparable strength to PFM crowns and eliminates the associated esthetic challenges that are common to metal-based options. Porcelain and zirconia are both highly esthetic and translucent, which eliminates the risk of discoloration or the dark metal appearing along the gingiva. We utilize advanced CAD/CAM technology to ensure every case is fulfilled with consistent and accurate fit.

Features

  • Lifelike Coloration
  • Natural Translucency
  • Eliminates Esthetic Challenges
  • Comparable Strength to PFMs

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.

  • Attachment cases
  • Cases with less than 1 mm clearance
  • Bruxism
  • 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)

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).

  • D2740 Crown - porcelain / ceramic substrate