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What are the full specifications of a PFM restoration?

This article is a quick-reference specification sheet for the PFM (Porcelain Fused Metal) restoration. The narrative articles (material science, indications, preparation, records, workflow, seating, and administration) expand on each line below.

At-a-glance specifications

Specification Detail
Description A strong metal substructure with layered porcelain; a time-tested restoration balancing esthetics, durability, and cost-effectiveness
Materials Metal of choice (non-precious white, noble yellow, or high noble yellow), opaque, and layered porcelain; Cobalt Chrome available as a nickel-free and beryllium-free alloy
Applications Anterior crown, anterior bridge, posterior crown, posterior bridge
Tooth shades All 16 VITA shades and 4 bleach shades
Strength (ROE listed) 200 MPa
Esthetics ★★★
Wear ★★★★
Patient visits (est.) 2
Days in lab 9 days in lab (does not include shipping)
Warranty 2 years
Records Traditional or digital impressions, impression of prepared teeth, opposing and bite registration, and shade
Preparation Minimum 1.5–2.0 mm occlusal clearance; equigingival to subgingival margins for best esthetics
Seating Clean the inside of the crown with cleaning solution; apply cement inside the crown and do not overfill; non-retentive preps may require light aluminous oxide abrasion at 20–40 lbs

Reading the strength figure

ROE lists PFM at 200 MPa in its fixed-restoration comparison, which is the lowest numeric figure in the lineup. In clinical terms this reflects the layered ceramic, which is the chip-susceptible element, rather than the metal coping. The metal substructure itself provides the structural strength ROE describes as appropriate for high-stress applications, which is why a PFM remains a robust restoration despite a modest ceramic-strength number.

Benefits summary

The headline benefits are a rigid, metal-reinforced refinement and the option for metal occlusal and lingual surfaces. ROE's CAD/CAM process adds superior marginal precision, exceptional internal fit, porosity-free copings, optimal computed cement space, and compatibility with conventional cementation.

 

Additional Resources

For more information concerning the Porcelain Fused Metal (PFM):

Contact Information

For help with a Locator Fixed solution for your next case, contact ROE Dental Laboratory: