Dental crowns are often called "caps." They cover teeth to restore them to their appropriate shape and size after large fillings, fractures, or weakening forces such as intense grinding. In all these cases, crowns not only cover teeth but also provide added support. They can be used to attach fixed dental bridges, cover dental implants, restore seriously discolored or misshapen teeth, and even as a preventive measure to protect a tooth in danger of breaking. Crowns can be made of all-porcelain (ceramic) material, porcelain fused to metal, and gold alloys (high noble). Each restorative material has its advantages and disadvantages. We prefer porcelain crowns because they are the most natural looking.