Bond strength of three nonaqueous elastomeric impression materials to a light-activated resin tray.

The bonding of nonaqueous elastomeric impression materials to the impression tray is critical for an accurate impression; mechanical locks and adhesive materials are commonly used to enhance bonding. This study evaluated the bonding of three elastomeric materials to a light-polymerized resin tray. Roughening the tray surface prior to the application of an adhesive enhanced the bond.