PFZ

The porcelain-fused-to-zirconia restorations from Lintec Dental Labs™ offer unparalleled esthetics for the anterior. Fabricated by layering esthetic porcelain on top of a durable zirconia substructure, this restoration benefits from high flexural strength and translucency. Unlike porcelain-fused-to-metal restorations, PFZs do not suffer from common esthetic disadvantages like discoloration or graying along the gingiva line. Due to zirconia's natural translucency, these crowns offer a warmer, lifelike coloration that will perfectly complement and blend in with your patient's preexisting dentition.

Features

• Hypoallergenic •
• Biocompatible •
• Lifelike Esthetics •

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.

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