3M's Lava Ultimate is a new type of CAD/CAM restorative material called a Resin Nano Ceramic (RNC). It combines the benefits of composites and ceramics by being strong and fracture resistant like composites while also having excellent polish retention like ceramics. Unlike other CAD/CAM materials, Lava Ultimate does not require firing after milling, allowing for a true chairside workflow. It offers high strength, fracture toughness, and polishability for long-lasting restorations.