This type of dental restoration represents a single-piece covering fabricated entirely from a metal alloy with a high proportion of noble metals, such as gold, platinum, and palladium. It encases the entire clinical crown of a tooth, extending to the gumline to provide complete protection and structural support. An example would be its use on a molar exhibiting significant damage from decay or trauma, where other restorative options are insufficient.
The use of this restoration provides exceptional biocompatibility, minimizing the risk of allergic reactions or tissue irritation. Its durability and resistance to corrosion ensure long-term performance and protection against the harsh oral environment. Historically, alloys with significant noble metal content have been favored for their longevity and precision fit, reducing the likelihood of recurrent decay and marginal leakage. This offers a conservative approach to preserving remaining tooth structure.