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Evaluation of a self-adhering flowable composite in terms of micro-shear bond strength and microleakage
Ozden Ozel Bektas1, Digdem Eren, Emine Gulsah Akin
1Department of Restorative Dentistry, Cumhuriyet University, Faculty of Dentistry, Sivas, Turkey.
Purpose:
The objective of this study was to evaluate dentin bond strength and microleakage of a self-adhering flowable resin with or without adhesive resin.
Materials And Methods:
Dentin pieces were randomly assigned to three groups (n = 10): Group OR (Optibond+Revolution Formula 2 Flow); Group VF (Vertise Flow); and Group OVF (Optibond+Vertise Flow). Then specimens were stressed in shear at a cross-head speed of 1 mm/min until the bond failed. Moreover, microleakage was determined by restoring Class V cavities. A statistical analyses was carried out using Mann-Whitney U and Kruskal-Wallis tests (p < 0.05).
Results:
Group OVF specimens produced the highest mean shear bond strength. In addition, the results showed that the marginal seal in group VF was similar to that in group OR.
Conclusion:
Self-adhering flowable composite resin combined with adhesive resin provided stronger dentin bond strength and a better marginal seal than when it was used individually. VF is a useful material with an acceptable bond strength and marginal seal.
