Shear Bond Strength of Calcium Enriched Mixture Cement and Mineral Trioxide Aggregate to Composite Resin with Two Different Adhesive Systems

Objective: immediate restoration after vital pulp therapy is essential in order to create and maintain effective coronal seal.purpose of study: the aim of this study was to evaluate the shear bond strength of re-cently used pulp capping materials: white mineral trioxide aggregate (mta), and cal-cium enriched mixture cement (cem) to composite resin with the use of etch-and-rinse and self-etch adhesive systems and compare them with the bond strength of commonly used resin modified glass ionomer (rmgi) cement.materials and methods: forty specimens from each test material were fabricated, measuring 4 mm in diameter and 2 mm in depth. the specimens of each material were divided into 2 groups of 20 specimens according to the adhesive system (single bond vs. clearfil se bond) used for bonding of resin composite. the shear bond strength values were measured at a crosshead speed of 1.0 mm/min and fractured surfaces were examined. data were analyzed using two-way anova and a post hoc tukey’s test (p<0.05).results: analysis of data showed a significantly higher bond strength for rmgi compared to mta and cem (p<0.001); however, no significant differences were ob-served in the bond strength values of mta and cem (p=0.9). furthermore, there were no significant differences in relation to the type of the adhesive system irrespec-tive of the type of the material used (p=0.95) all the failures were of cohesive type in rmgi, mta and cem.conclusion: bond strength of rmgi cement to composite resin was higher than that of mta or cem cement irrespective of the type of the adhesive system.