Adhesion of substrate–adherent combinations for early composite repairs: Effect of intermediate adhesive resin application |
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| Affiliation: | 1. Dental Materials Unit, University of Zürich, Center for Dental and Oral Medicine, Clinic for Fixed and Removable Prosthodontics and Dental Materials Science, Plattenstrasse 11, CH-8032 Zürich, Switzerland;2. Department of Dental Materials and Prosthodonctics, São Paulo State University (UNESP), Dental School of São Jose dos Campos, Praça Melvin Jones 48, Jardim São Dimas 12245-360, São Paulo, Brazil;3. Department of Prosthodontics, Faculty of Dentistry, Dumlupinar University, Tavsanli Yolu 10. Km., 43270, Kutahya, Turkey;4. Oral and Dental Health Center, Kutahya, Turkey;1. State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;2. Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;1. Physics and Physical Chemistry of Food, Department of Agrotechnology and Food Sciences, Wageningen University, Wageningen, The Netherlands;2. ETH Zurich, Department of Materials,Polymer Physics, Zurich, Switzerland;1. Department of Materials Science and Engineering, Engineering Faculty, Ferdowsi University of Mashhad, Mashhad, Iran;2. State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | This study evaluated the effect of intermediate adhesive resin application (IAR) on tensile bond strength (TBS) for early composite repairs in situations where substrate and repair composite bonded together were once of the same kind with the substrate (similar) and once other than the substrate material (dissimilar). Specimens from three types of composites (TPH Spectrum (TPH), Charisma (CHA) and Filtek Z250 (Z250)) were fabricated. The specimens in each composite group (n=72) were randomly divided into six subgroups (n=12). In each composite group, the similar and two dissimilar composites were bonded onto the substrates once using an IAR (Adper Single Bond Plus) and once without. After water storage for 1 week at 37 °C, substrate–adherent combinations were submitted to tensile test. Data were analyzed with three-way ANOVA and Tukey's tests (α=0.05). The substrate–adherent combination (p=0.0001), adherent (repair) composite (p=0.0001), and application of IAR (p=0.0001) significantly affected the results. Utilization of IAR improved the repair bond strength for all composite combinations. |
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| Keywords: | Composite resin Dental restoration repair Repair Surface conditioning Tensile bond strength |
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