PFM

PFM

Apex is proud to offer not only all-ceramic restorations, but also traditional standards, such as porcelain-fused-to-metal. These crowns are crafted by fusing a layer of porcelain to an underlying layer of high-quality metal alloys. Apex provides a variety of alloy options for our PFM restorations, including non-precious, semiprecious, high noble, high noble yellow, and high noble white. Our technicians carefully layer the porcelain on each restoration to ensure there are no esthetic complications that can occur with PFMs that are not carefully crafted. We also utilize the latest CAD/CAM technology to ensure this traditional solution still provides a high standard of precision.

Benefits:

  • Biocompatible
  • Clinically Successful
  • Gentle on Opposing Dentition
  • Precise Fit

Indications

Our PFMs can be used for crowns and bridges (up to fourteen units). PFMs can be manufactured to nonprecious, semiprecious, and yellow high noble copings and can be used in conjunction with cast partials and implants.

Contraindications

Contraindicated when the patient has a metal allergy or when the size of the tooth pulp is negligibly smaller, thus compromising the tooth preparation process. It is also contraindicated when the clinical tooth crown is very short and lacks the required stability including retention that is enough to provide the space for porcelain and metal.

Preparation

The ideal preparation for PFMs is a chamfer margin preparation. If a porcelain labial margin is prescribed, then a shoulder margin preparation is required.

Cementation

  • Panavia 21 – tin plated
  • Glass ionomer cement (GC Fuji, GC America)
  • Zinc Phosphate Polycarboxylate
  • Resin Ionomer cement (RelyX, 3M ESPE)

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

  • D2750 Crown Porcelain fused to high noble
  • D2751 Crown Porcelain fused to nonprecious
  • D2752 Crown Porcelain fused to semiprecious
  • D6750 Crown Porcelain fused to high noble (bridge units)
  • D6751 Crown Porcelain fused to nonprecious (bridge units)
  • D6752 Crown Porcelain fused to semiprecious (bridge units)