Retention of CAD/CAM All?Ceramic Crowns on Prefabricated Implant Abutments: An In Vitro Comparative Study of Luting Agents and Abutment Surface Area

Conclusions: Of the five cements tested, the most retrievable CAD/CAM restorations were luted with Temp Bond NE and Improv Temporary Cement. Resin?modified glass ionomer retentive forces were closer to those of the “temporary cements” than those of the permanent adhesive?resin cements. The abutment surface area became less important when using adhesive?resin cements. Retention of CAD/CAM all?ceramic restorations to prefabricated abutments has not been reported in the literature. This in vitro study demonstrated clinically significant variation among the selected cements used to retain all?ceramic CAD/CAM restorations to implant abutments. In addition, abutment size influenced the retention of all?ceramic CAD/CAM restorations. (Source: Journal of Prosthodontics)
MedWorm: Dentistry