Determination of the retentive ability of different luting agents in titanium abutments on implant-supported crowns

Abstract

Implant-supported crowns are either cement-retained or screw-retained. Recently, function and esthetics have been given major focus as advances in implants have greatly improved the longevity of implant restoration. Superior esthetics is seen with cement-retained restoration and is more preferred. However, it is a controversial topic to select the ideal cement type for luting the implant-supported crown. The present study aimed to assess the retentive ability of different luting agents in titanium abutments on implant-supported crowns. The study assessed 60 samples divided into 3 groups of 20 subjects each where luting was done with three different types of cement, namely glass ionomer cement, zinc polycarboxylate, and zinc phosphate, respectively. A testing machine was used to assess the retentive strength of the three types of cement. The study results conclude that the highest retentive strength is seen with zinc polycarboxylate cement, followed by the glass ionomer and zinc phosphate cement.