In recent years, *highly cross-linked prefabricated polymethylmethacrylate (PMMA) resin blocks* have been introduced for use in *CAD/CAM systems. These **PMMA-based milled temporary restorations* are especially well-suited for extended clinical use, thanks to their industrial fabrication under controlled, standardized conditions. As a result, CAD/CAM polymer materials demonstrate *enhanced mechanical strength and improved esthetic qualities*, making them a reliable choice for long-term provisional restorations.