PFM

https://www.dentallabgs.com/products/pfm-porcelain-fused-to-metal/

PFM metal are the most popular and reliable restorations because of their durability and natural esthetics. Using a cast metal substructure veneered with porcelain, this material mimics the appearance of natural tooth, the finished denture can match with remaining teeth. The pontic porcelain crown must be sufficiently thick to hide the metal substructure and the opacious porcelain used to mask this alloy.