Effect of laser etching on the fracture strength of the monolithic zirconia and fiber-reinforced composite inlay-retained fixed partial dentures |
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| Authors: | Emine Sirin Karaarslan Abdul Semih Ozsevik Asli Secilmis Ozge Parlar Oz Hatice Derya Gursel Surmelioglu |
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| Affiliation: | 1. Faculty of Dentistry, Department of Restorative Dentistry, Gaziosmanpasa University, Tokat, Turkeyemine.karaarslan@gop.edu.tr;3. Faculty of Dentistry, Department of Restorative Dentistry, Gaziantep University, Gaziantep, Turkey;4. Faculty of Dentistry, Department of Prosthodontics, Gaziantep University, Gaziantep, Turkey |
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| Abstract: | Aim: The aim of this study was to evaluate the fracture strength of monolithic zirconia and fiber-reinforced composite (FRC) inlay-retained FPDs, both of which are cemented to the laser-etched cavity surfaces.Materials and Methods: Eighty freshly extracted sound human teeth were used. A premolar and a molar tooth were embedded in an autopolymerizing acrylic resin. Forty acrylic resin models were randomly divided into two groups including monolithic zirconia and FRC inlay-retained FPDs (n = 20). Then, these groups were divided into two subgroups according to conditioning of the cavity surfaces with or without Er:YAG laser etching. Monolithic zirconia inlay-retained FPDs were produced by an inLab MC XL milling device using monolithic zirconia blocks. Tescera? Fiber Reinforcement Materials were used for the FRC inlay-retained FPDs. After 10.000 thermal cycles, fracture strength test was applied to the specimens.Results: The monolithic zirconia inlay-retained FPDs exhibited the highest fracture strength than the FRC inlay-retained FPDs. Fracture strength was increased with laser etching for both restorative materials (p < 0.05).Conclusion: Laser etching had positively effect on the fracture strength of the inlay-retained FDPs. |
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| Keywords: | Monolithic zirconia fiber-reinforced composite inlay-retained FPDs laser etching |
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