Retention of Cemented Implant‐Supported Restorations

Abstract

Twenty-four hours postcementation, zinc phosphate luting cement significantly enhanced CFLs of a CeraOne gold cylinder luted to a 5-mm CeraOne titanium abutment compared with Tempbond and Tempbond NE. Filling the gold screw access opening of the abutment with autopolymerizing resin only led to higher mean CFLs when Tempbond was used as the luting agent. Filling the access opening had no effect (p > .05) on mean CFLs when Tempbond NE or zinc phosphate was used.

Resistance to Crown Displacement on a Hexagonal Implant Abutment

“…5 tively small, the parallel walls and angled-hexed design seem to allow retention and resistance of a crown of greater dimension than could be expected from comparable natural tooth preparations. 6 This novel implant system uses a prefabricated flatwall abutment design similar to those noted previously. Covey et al 7 compared the retentive strength of 3 different diameter CeraOne abutments: the standard, wider, and narrower diameter abutments.…”

Comparison of 3 Luting Agents on Retention of Implant-Supported Crowns on 2 Different Abutments

“…16 The luting agents influence retention by type and composition, variations in cement viscosity, film thickness, variations in the seating forces, and the duration of the force applied. 17 Controversy exists as to whether a provisional or final luting agent should be selected. 1,15,18 The use of provisional cement for retrievability is based on the idea that the retention provided by provisional cements is less than that of final luting agents and thus will ensure retrievability of the restorations.…”

New glass polyalkenoate temporary cement for cement-retained implant restoration: Evaluation of elevation and retentive strength

“…However, in an evaluation of 11 types of cements used for implantsupported restorations, Sheets et al reported that UltraTemp (regular set), a polycarboxylate provisional cement, was more retentive than Ketac Cem Aplicap, a GIC, and that it was ranked the highest among the 11 types of cements 29) . Similarly, several other studies echoed this ranking order 8,[30][31][32] . In this study, on the other hand, it was shown that the new glass polyalkenoate cements exhibited excellent postcementation retention and elevation.…”