What is the primary characteristic of porcelain-fused-to-metal (PFM) restorations?

The primary characteristic of porcelain-fused-to-metal (PFM) restorations is their high strength. PFM restorations combine the aesthetic qualities of porcelain with the strength of a metal substructure, making them an excellent choice for many dental applications, particularly in areas that require durability, such as posterior teeth. The metal base provides the necessary resilience to withstand the forces of chewing and biting, while the porcelain layer delivers an appealing natural appearance that closely resembles that of natural teeth.

While aesthetic appeal is indeed a significant aspect of PFM restorations, it is the combination of strength and aesthetics that makes them particularly beneficial. Other considerations such as tooth reduction are also important; however, the primary defining characteristic remains the high strength of these restorations due to the metal framework, which supports the porcelain and enhances the overall durability of the restoration.