Crowns are dental restorations that completely cover a damaged or weakened tooth to restore its appearance, shape, and function. Crowns are typically made of various materials, including ceramic, porcelain, metal alloys, or a combination of materials. They can be used to repair teeth that have been fractured or extensively decayed, protect teeth that have undergone root canal treatment, and improve the appearance of misshapen or discoloured teeth. Crowns are custom-made for each patient and are cemented onto the remaining tooth structure to provide long-lasting durability and protection.