@article{article_438205, title={ADHESIVE SYSTEM AFFECTS REPAIR BOND STRENGTH OF RESIN COMPOSITE}, journal={Journal of Istanbul University Faculty of Dentistry}, volume={51}, pages={25–31}, year={2017}, DOI={10.17096/jiufd.31921}, author={Irmak, Özgür and Çeliksöz, Özge and Yılmaz, Begüm and Yaman, Batu Can}, keywords={Resin composite,repair; micro-shear; adhesive; bond strength}, abstract={<p> <strong>Purpose </strong>: This study evaluated the effects of different adhesive systems on repair bond strength of aged resin composite. </p> <p> <strong>Materials and Methods: </strong>Ninety composite discs were built and half of them were subjected to thermal aging. Aged and non-aged specimens were repaired with resin composite using three different adhesive systems; a two-step self-etch adhesive, a two-step total-etch adhesive and a one-step self-etch adhesive; then they were subjected to shear forces. Data were analyzed statistically. </p> <p> <strong>Results: </strong>Adhesive type and aging significantly affected the repair bond strengths (p<0.0001). No statistical difference was found in aged composite groups repaired with two-stepself- etch or two-step total-etch adhesive. One-step self-etch adhesive showed lower bond strength values in aged composite repair (p<0.0001). </p> <strong>Conclusion: </strong>In the repair of aged resin composite, two-step self-etch and two-step total-etch adhesives exhibited higher shear bond strength values than that of one-step self-etch adhesive.}, number={3}, publisher={Istanbul University}