A dental crown is a precisely fabricated tooth shaped device, typically made of porcelain, designed to restore a prepped tooth to its natural form. It can improve the shape, size, strength, color and function once cemented. Crowns are most typically recommended due to excessive decay or fractures to the existing tooth. Crowns can be made from various materials including but not limited to: gold, zirconia, porcelain fused to metal, and lithium disilicate.
TIP: Once it is determined you need a crown discuss the pros and cons of materials with your dentist. Ex: strength, necessary reduction of tooth structure and esthetics