Realization of temporary composite resin with the injection technique in transparent muffle. The result reproduces the same characteristics of the original modeling, without dimensional differences and in extremely short time. MATERIALS USED: Universal Blue Silicone 70 Shore Traspa Silicone 22 Shore Comp Flow Silicone Regular Precision Trasparente Isolante Spray PRODUCTS USED: Muffola Small Glass Polimerizzatrice Light Box TIMES: Transformer system: 15 min Traditional system: 4 hours PROVVISORIO IN COMPOSITO