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Material Selection for Tooth-Supported Metal-Ceramic Restorations

All-ceramic constructions are becoming more common, but porcelain-fused-to-metal still dominates larger bridges. Common alloys include gold, palladium-silver, cobalt-chrome, and titanium. Choices are influenced by cost, aesthetics, strength, biocompatibility, and corrosion resistance.

Author: Lars Hjalmarsson • Dental Specialist • PhD • Department of Oral Prosthodontics/Dental Materials Science • Gothenburg
Reviewed by: Victoria Franke Stenport • Specialist in Oral Prosthodontics • Professor • Department of Oral Prosthodontics/Dental Materials Science • Gothenburg
8 min read
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    This article is based on an original article in Swedish which can be found here

    BACKGROUND

    All-ceramic constructions have become increasingly common in tooth-supported prosthetics, but metal-ceramic (PFM) constructions still often appear as a first-choice option for many dentists, especially for larger bridges. However, PFM (porcelain-fused-to-metal) is not a uniform concept; there are several different materials to choose from, each with its advantages and disadvantages.

    Comparative properties of three common PFM materials. Processed from Anusavice.

    Gold alloy Cobalt-chromium alloy CP titanium
    Technique sensitivity Low Medium Very high
    Porcelain bonding Excellent Excellent Good
    Cost High Low Low

    GOLD ALLOYS

    Advantages

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