Dental crowns are custom-made caps that are designed to fit over a damaged or decayed tooth. The crown is used to restore the strength, shape, and appearance of the tooth, as well as protect it from further damage. Crowns can be made from materials such as porcelain, metal alloys, or a combination of both. The crown may also be used to anchor a dental bridge in place, replace a missing tooth, or protect a weakened tooth from fracturing. Ultimately, dental crowns help restore teeth to a more natural-looking state.