The purpose of this in vitro study was to evaluate the effect of different adhesion primers on the repair bond strength of bulk-fill resin composite and short-term hydrolytic stability of the repair interface before and after accelerated aging. In addition, direction of debonding stress was examined…

In this in vitro study, testing shear bond strength of composite-to-composite bonding, the new universal bonding agents performed similar and for some agents better than the ‘Gold Standard’, 3-step etch-and-rinse bonding agent. New simplified bonding procedures seem reliable for repair of composite.

The aims of this study were to present a novel method to analyse dentin bond strength and to evaluate the bond strength of combining adhesive systems and resin cement from different manufacturers. Based on the results and within the limitations of this laboratory study, it can be concluded that using alternating combinations of resin cement
and adhesives seem possible and that the resin cement were the weakest components in the bonded dentin-adhesive-cement-complex.

The aim of this study was to investigate the effect of silane in the repair of old and new resin-composite restorations.

Six commonly used composite resin materials and recommended bonding systems were tested to assess shear bond strength at the interface between aged and new composites with and without bonding. Test specimens were aged in water for 60 d before new composite was placed.