Crowning or teeth capping is performed when a large cavity threatens the health of a tooth. One of the most commonly used crowning materials is zirconium oxide. This metal belongs to the titanium family. It lasts longer than other types of crowning material and highly resembles actual teeth. On average, it lasts 10-15 years, although for many patients it will last a lifetime. Although it’s translucent makes it ideal for anterior teeth, its strength makes it extremely suitable for posterior teeth.