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:
- Phone: (216) 663-2233
- Email: info@roedentallab.com