Crowns in general are tooth shaped restorations that are used for improving the general appearance of teeth. Crowns serve their purpose by completely covering the tooth surface that is visible. These crowns are made from various types of materials but we shall focus on the porcelain fused to zirconia crowns (PFZ). This crown has become one of the favorite choice for both dentists and their patients. The reason for this preference is because this type of crown combines strength, durability and aesthetics. Porcelain fused to zirconia crowns are formed by porcelain being combined with zirconium oxide. The zirconia base has a white shade and is layered with porcelain to match final restoration. The porcelain fused with zirconia crowns are …