Crowns, also called caps, are used to completely cover a tooth. A crown is applied when a large portion of a tooth is decayed or fractured. We recommend a full coverage crown following a root canal as a non-vital or dead tooth tends to get brittle over time and can easily fracture. Crowns can be designed to repair a single tooth, multiple teeth, or with dental implants to fill a space. Crowns can be made of various materials, such as gold and other metals, tooth coloured porcelain and zirconia, or a combination of tooth coloured and metal.