ADHESIVE SYSTEM AFFECTS REPAIR BOND STRENGTH OF RESIN COMPOSITE

Authors : Özgür IRMAK, Özge ÇELİKSÖZ, Begüm YILMAZ, Batu Can YAMAN

Pages : 25-31

Doi:10.17096/jiufd.31921

View : 18 | Download : 18

Publication Date : 2017-10-02

Article Type : Research Paper

Abstract :Purpose : This study evaluated the effects of different adhesive systems on repair bond strength of aged resin composite. Materials and Methods: 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. Results: Adhesive type and aging significantly affected the repair bond strengths insert ignore into journalissuearticles values(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 insert ignore into journalissuearticles values(p<0.0001);. Conclusion: 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.
Keywords : Resin composite, repair, micro shear, adhesive, bond strength