Porcelain-Fused-to-Metal (PFM)

Porcelain-Fused-to-Metal (PFM) crowns are one of the most time-tested and widely used types of dental restorations. Combining the strength of a metal substructure with the aesthetic quality of porcelain, PFM crowns offer a balance between durability and appearance. The core is typically made of a high-melting-point metal alloy, which allows porcelain to be fused without compromising the crown’s integrity or color stability. During preparation, a significant portion of the natural tooth is removed to ensure proper space for both the metal framework and the porcelain overlay. The result is a strong, functional, and visually pleasing restoration.

product details

description1

Indications

PFM crowns are highly versatile and suitable for a wide range of clinical cases, including:

✔ Full-coverage restorations for posterior and anterior teeth

✔ Cases requiring enhanced durability due to heavy occlusion or bruxism

✔ Restoration of teeth with significant structural loss

✔ Long-span bridges requiring strong abutment crowns

✔ Economical esthetic restorations where full ceramic may not be feasible

Advantages

Premium Aesthetics: The porcelain surface mimics the natural look of teeth, offering a lifelike finish.

Internal Characterization: Custom staining and shading allow for better shade matching with adjacent teeth.

Natural Light Transmission: Proper layering of porcelain eliminates the common “grey line” near the gum line.

Precision Fit: CAD/CAM-designed and milled metal substructures ensure accurate margins and optimal fit.

Cost-Effective: Offers an excellent balance of aesthetics and affordability for long-term restorations.

Color Matching: Available in a full range of Vita classical and 3D shades.

Material Composition

Metal Core Options: Nickel-Chromium (Ni-Cr), Cobalt-Chromium (Co-Cr), or high noble alloys

Porcelain: High-fusing feldspathic porcelain for esthetics and longevity

Technical Parameters

Flexural Strength	>900 MPa
Bond Strength (Porcelain to Metal)	>25 MPa
Fracture Resistance	Excellent under normal masticatory forces
Biocompatibility	High, with corrosion-resistant metal alloys
Thermal Expansion Compatibility	Porcelain and metal matched for optimal bonding
Minimum Thickness Required	1.2–1.5 mm (combined metal and porcelain)
Turnaround Time	3–5 working days
Lifetime (Warranty)	3 years warranty including remakes or adjustments within the warranty period