Comparison of shear bond strength of resin cements, felt bulk composite and heated nanohybrid composite in connection with glass ceramics after thermocycling process

Abstract

Background and purpose: The purpose of this study was to compare the shear bond strength of resin cements, bulk felt composite, and heated nanohybrid composite in connection with glass ceramics after the thermocycling process. Materials and methods: The present study was carried out in a laboratory on lithium disilicate blocks.In this study, 45 samples in each group and a total of 135 samples in three groups Bisco Choice 2 resin cement bond to lithium disilicate block using FGM amber Universal (G1) adhesive, Tokuyama BULK FLOW composite bond to lithium di block Silicate using (G2) FGM amber Universal and heat-treated nanohybrid composite band Palfique asteria tokuyama to lithium disilicate block using adhesive (G3) FGM amber Universal were examined in terms of shear bond strength of the samples and fracture pattern. Results: The shear bond strength of resin cement was significantly higher than the shear bond of bulk elephant composite, and the shear bond strength of resin cement was significantly higher than the shear bond of heated nanohybrid composite, as well as the shear bond strength of bulk elephant composite compared to shear bond. The heated nanohybrid composite is significantly higher. Conclusion: In general, the results of the present study showed that the shear bond strength of resin cement was significantly higher than that of bulk felt composite and the shear bond of bulk felt composite was significantly higher than that of heated nanohybrid composite.