The effects of alloy surface treatments and resins on the retention of resin-bonded retainers.

This study evaluated the effects on retention of three metal surface textures and four resin luting materials by measuring the magnitude of the force required for the removal of resin-bonded fixed partial denture retainers. The results of the study indicate that a retainer air-abraded with 250 mu aluminum oxide, used with any of the resins tested, should provide sufficient retention for single pontic posterior resin-bonded fixed partial dentures.