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PFZ

Porcelain fused to zirconia restorations are an excellent alternative to PFM restorations. With a high flexural strength, they are hypoallergenic and biocompatible. Crafted by layering feldspathic porcelain over a zirconia substructure, they provide the strength of PFM crowns while eliminating esthetic challenges, such as bright opaque reflection or the dark shadow line that can appear apical to the margin. Through the use of advanced CAD/CAM technology, they provide consistently accurate fit. Due to zirconia’s natural translucency, these crowns are warmer and provide superior lifelike coloration when compared to their PFM counterparts.

PFZ

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 eight units.

  • Attachment cases
  • Cases with less than 1 mm clearance
  • Bruxism
  • Patients who have broken a PFM crown
  • Cases that require bonding

The ideal margin preparation for a PFZ is a chamfer. With corresponding prep depth the idea crown thickness is 1.5 mm axial and 2.0 mm occlusal or incisal.

The manufacturer Ivoclar Vivadent recommends using Multilink Automix for maximum strength of the restoration over-all.

  • Panavia V5 (Kuraray) - ideal for short, tapered preparations
  • 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 polish the roughened the ceramic, use the Brasseler Dialite Polishing System or similar substitute.

  • D2740 Crown - porcelain / ceramic substrate

Our Mission Statement

Killian Dental Provides the Finest, Technically Precise and Esthetically Natural Dental Restorations to our Dentist Clients, their Staff and Patients, Consistently, in a Personal and Caring Manner.