Comparison of the shear bond strength of RMGIC to a resin composite using different adhesive systems: An in vitro study

Abstract

Aim:This study evaluated and compared the role of newer dental adhesives to bond composite resin to the resin modified glass ionomer (RMGIC) liner.Materials and Methods:Thirty-six specimens were prepared on acrylic blocks, with wells prepared in it by drilling holes, to retain the RMGIC. The specimens were randomly divided into three groups of 12 specimens each. In group I, a thin layer of an adhesive, which was a Total-etch type (Adper Single bond-2), was applied between RMGIC and the composite resin. Ingroup II, a Self-Etch adhesive (Adper prompt-L pop) was applied, and in group III there was no application of any adhesive between RMGIC and the composite resin. After curing all the specimens, the shear bond strength was measured using an Instron universal testing machine.Results:The results were drawn and tabulated using ANOVA-fishers and Tukey’s statistical tests. The maximum shear bond strength values were recorded in group II specimens with the self-etch adhesive (Adper prompt-L pop), showing a mean value of 5.826 when compared to the group I adhesive-Total-etch type with a mean shear bond strength of 4.6380, while group III specimens, where no adhesive was used, showed a minimum mean shear bond strength of 2.8385. There was a great and significant difference between group I and group II (P value 0.003), whereas, both group I and group II showed a vast and significant difference from group III (P value 0 – 001).Conclusion:Hence, this present study concludes that application of Self-Etch adhesive (Adper prompt-L pop) in between RMGIC and composite resin increases the shear bond strength between RMGIC and the resin composites, as compared to the Total-etch type adhesives (Adper Single Bond 2), as well as, without application of the adhesive agent.

Bond strength of a composite resin to glass ionomer cements using different adhesive systems

“…In our study, the bond strength between composite resin and GICs when using a simplified etch-and-rinse and self-etching adhesive systems improved significantly when compared with application of the composite resin directly onto the GIC. Similar results were observed by Kundabala et al 14 . According to Hinoura et al 15 adhesive systems improved the wettability of the GIC, and consequently, improved the bond to the composite resin.…”

“…Although the statistically significant difference was not always present, self-etching adhesive systems determined higher mean bond strength values between composite resin and resin-modified GICs than the conventional adhesive system. Kundabala et al 14 and Zhang et al 17 also observed higher values of bond strength when using self-etching adhesive systems. This may have been due to a lower viscosity of self-etching adhesive systems, which determines a lower angle of contact with the surface of the GICs, resulting in better wettability, and consequently, better bonding between composite resin and GICs…”

<p>Shear Bond Strength of Bulk-Fill Composites to Resin-Modified Glass Ionomer Evaluated by Different Adhesion Protocols</p>

“… 32 In contrast, the SBS mean value for Z350XT was significantly higher in the CFSE group compared with the OB group. These results were in agreement with those of Arora et al and Hinoura et al 33 , 34 However, in this study, there were no significant differences between the CFSE and SBU groups for the Z350XT material.…”

Shear bond strength evaluation of resin composite bonded to three different liners: TheraCal LC, Biodentine, and resin-modified glass ionomer cement using universal adhesive: An in vitro study

“…[ 6 7 ] The bond strength of RMGIC to RC varies depending on the type of adhesive used and it has been proved that self-etch is better than total etch. [ 8 ]…”