A dental crown is a tooth-shaped cap that is placed over a damaged, decayed, or weakened tooth to restore its shape, size, strength, and appearance. Crowns are often used when a tooth is too damaged for a regular filling but still has enough structure to be saved. They are also used to improve the appearance of a tooth, especially in cases of severe discoloration or misshapenness. Extremely durable and resistant to wear, making them ideal for molars that endure heavy chewing forces. The metal provides strong support, while the porcelain offers a natural tooth-like appearance.