Which item in the Restorative Materials is a metal alloy often used for durable restorations?

• A. Gold Alloy
• B. Glass Ionomer
• C. Composite Resin
• D. Bonds

Answer: (A)

Durable metal alloys in dentistry are chosen for their strength, wear resistance, and longevity. Gold alloy fits this role because it’s a true metal alloy formed by gold combined with other metals (like palladium or platinum) to enhance properties. It offers excellent biocompatibility, resists corrosion, and can be cast to create precise, long-lasting crowns, inlays, or bridges. While it isn’t the most esthetic option due to color, its ability to withstand chewing forces over many years makes it a classic choice for durable restorations. The other items listed aren’t metal alloys—glass ionomer is a cement, composite resin is a tooth-colored plastic, and bonds refer to bonding agents.