Influence of polymerization modes on the flexural strength and microhardness of dual cure, self adhesive resin cements

Abstract

Aim- The main aim of the study is to determine the influence of polymerization modes on the flexural strength and microhardness of three dual cure, self adhesive resin cements. Material and methods- Three self-etching/self-adhesive luting agents were mixed and dispensed according to manufacturer’s instructions. The specimens for the flexural strength three-point bending test were fabricated by placing the materials into aluminum split mold that was 2 mm deep X 2 mm wide X 30 mm long. The specimens for microhardness test were made within aluminium split mold, 6 mm in diameter and 3 mm in height (6x3mm) according to ISO standards. Results- There was definite increase in flexural strength of Dual cure, self-adhesive resin cements when dual cured than self-cured.There was definite increase in microhardness of Dual cure, self-adhesive resin cements when dual cured than self-cured.Relyx U200 (group II ) showed highest flexural strength when compared to BeautiCem SA (group I) and MaxcemElite (Group III). MaxcemElite (group III) showed least microhardness when compared to BeautiCem SA (group I) and RelyX U200 (group II).