A dental covering fabricated from a silver-colored material, often amalgam or stainless steel, provides protection for a compromised tooth. This restoration encases the visible portion of the tooth, shielding it from further damage and restoring its structural integrity. For example, after root canal therapy, a substantial amount of tooth structure may be lost, making it susceptible to fracture; in such cases, this type of covering can provide the necessary support.
The use of these metal coverings offers several advantages, including durability, affordability, and resistance to wear. Historically, they have been a common choice for restoring posterior teeth, which endure significant biting forces. The long-term success of these restorations lies in their ability to withstand these forces and prevent further decay. Their placement can help preserve the natural tooth, averting the need for extraction.