Tensile Bond Strength of Resin Composite to Er,Cr:YSGG Lased Dentin Bonded With Different Adhesive Systems

Aims: Tensile bond is important for assessing the success of adhesive reorative materials. The aim of this udy is to evaluate the tensile bond rength of resin composite reoration to Er,Cr:YSGG lased dentin bonded with three types of adhesive syems. MATERIALS AND METHODS: Occlusal enamel of eighteen molars samples was removed to expose the underlining dentine. Er,Cr:YSGG laser irradiation was performed to central dentin. Samples were assigned randomly to three groups (N = 6): Group : dentin was treated total etch adhesive (Adper single bond, 3M ESPE); Group II: treated with all in one selfetch adhesive (Adper easy one, 3M ESPE); Group III: treated with two ep selfetch adhesive (Clearl SE bond, Kurary). A translucent plaic tube was xed and lled incrementally with hybrid resin then small metal screw with ring head was embedded in la increment. Samples were ored in diilled water at 37C for 24 hours. Tensile bond rength was measuredd using universal teing machine (Digital Force Gauge IMADA CO., LTD, Japan), the failure mode was evaluated. Then atiical analysis was done include descriptive, one way analysis of variance te, and Po Hoc tes. RESULTS: A signicant dierences in tensile bond rength were observed among groups (p < 0.05). Total etch adhesive bonded demonrate signicantly higher tensile bond rength value than one ep selfetch and two ep selfetch adhesives (p < 0.05). No signicant dierences were observed between one ep selfetch and two ep selfetch adhesives (P>0.05). CONCLUSION: The tensile bond rength of resin composite to Er,Cr:YSGG lased dentin was inuenced by adhesive type. Total etch adhesive bonded had higher tensile bond rength than one ep and two eps selfetch adhesives.