Porcelain Fused to Metal (PFM) crowns are a regularly used dental restoration operations, gathering together the strength of metal alloy with the natural appeal of porcelain. These crowns are designed to restore cracked, damaged or decayed teeth while maintaining a natural appearance with alone and other adjacent teeth. This property making PFM’s a popular choice for both front and back teeth.
PFM crowns consist of two primary components indicated before; a metal base substructure and a porcelain overlay. The metal part of the PFM, typically made from alloys (composition of two or more metal element) such as gold, palladium, or nickel-chromium, provides strength and durability. Over this framework, a layer of porcelain is fused at very high temperatures to mimic the natural color and translucency of real teeth. This metal and porcelain combination obtains that the crown is both functional and durable and visually pleasing.
The biggest advantages of PFM crowns is their balance between durability, aesthetics and cost. The metal base framework provides excellent durability to fractures and wear, making these crowns ideal for withstanding the forces of chewing and grinding foods. Moreover, the porcelain exterior can be customized to match the color of surrounding teeth by personally, creating a perfect fit with the other teeth.
PFM crowns are also relatively cost-effective compared to other ceramic crowns, offering a durable solution without compromising too much on appearance. They are suitable for both anterior and posterior restorations. Despite their benefits, PFM crowns have some drawbacks. For example, over time, the metal substructure may become visible at the gum-line, especially if gum recession occurs. This can affect the aesthetic vision. Additionally, patients with metal element allergies which plays an important role to use this method, may not be ideal candidates for this type of restoration.
PFM crowns represent a long lasting and visually pleasing option for dental restorations. While in developing dentistry technology, newer materials such as zirconium crowns and all-ceramic crowns are gaining popularity these days. Therefore, PFM crowns are still remain a trusted solution due to their durability and cost-effectiveness.
