SHEAR BOND STRENGTH OF RESTORATIVE PARTICULATE RESIN COMPOSITE WITH A SHORT FIBER-REINFORCED RESIN COMPOSITE SUBSTRUCTURE
Keywords:Fiber-reinforced resin composite, Restorative particulate resin composite, Substructure, Bond strength
Objective: This study aimed to identify the shear bond strength of two different restorative particulate resin composites with a short fiber-reinforced resin composite (SFRC) substructure.
Methods: Two restorative particulate resin composites, G-aenial PosteriorTM (GroupÂ A, 10Â specimens) and Tetric N-Ceramtm (GroupÂ B, 10Â specimens), were used as an upper layer of everX posteriorTM, an SFRC. AÂ shear bond strength test was performed using a universal testing machine with a load of 100 kgf and a crosshead speed of 0.5Â mm/min. The data were analyzed statistically using the independent samples t-test.
Results: The mean shear bond strength values were found to be18.64Â±1.5 MPa (GroupÂ A) and 22.05Â±1.8 MPa (GroupÂ B). AÂ significant difference in shear bond strength between the two groups was found.
Conclusion: The shear bond strength value is higher in the Tetric N-CeramTM restorative particulate resin composite with SFRC as a substructure than the G-aenial PosteriorTM restorative particulate resin composite.
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