Bonding Effectiveness of Contemporary Materials in Luting Glass-Ceramic to Dentine: An in Vitro Study

Aim: To evaluate the shear bond strength (SBS) of resin cements, flowable composites, and a preheated composite in luting glass-ceramic to dentin. Materials and Methods: in total, 108 noncaries human third molar teeth embedded in acrylic blocks, grinded from the occlusal surfaces until dentin was exposed, and divided into 9 randomized groups (n = 12). in total, 108 ceramic samples prepared in disc shape (3mm x 3mm) from IPS e. max CAD (Ivoclar Vivadent) blocks. Four adhesive resin cements: Variolink Esthetic DC (Ivoclar Vivadent), G-CEM LinkForce (GC), Panavia V5 (Kuraray Noritake), Maxcem Elite Chroma (Kerr), and three flowable composites: G-ae nial Universal Flo (GC), Herculite XRV Ultra Flow (Kerr), Vertise Flow (Kerr), and one preheated composite: Enamel Plus HRI (Micerium) luted to the prepared occlusal surfaces of the teeth with total-etch, self-etch, and self-adhesive protocols. Then samples were thermocyled (5,000 cycles, 5-55 degrees C, dwell time 20 s). SBS test was performed in a universal testing machine (at 0.5 mm/min). Failure modes were examined under a stereomicroscope at x25 magnification. Data were analyzed using Kruskal-Wallis and Dunn-Bonferroni tests (alpha = 0.05). Results: There were statistically significant differences among material types (P .05). Conclusion: Flowable composites can be alternatives to resin cements when bonded with total-etch procedures. Bond strength of self-etch and self-adhesive applications is still to be developed.Ege University, Scientific Research Project Coordination UnitEge University [18-DIS-005]The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was supported by the Ege University, Scientific Research Project Coordination Unit (Project Number: 18-DIS-005)