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Fracture strength of endodontically treated teeth restored with different fiber post and core systems

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Abstract

The aim of this study was to investigate the effects of different post and core systems, CAD/CAM crown placement on fracture strength of endodontically treated mandibular premolar teeth. One hundred forty single-rooted premolar teeth were randomly divided into a control group and six experimental groups as follows: control group (Group 1); FiberSite post luting with Clearfil DC Core Plus (Group 2); RelyX Fiber post luting and core build up with Clearfil DC Core Plus (Group 3); RelyX Fiber post luting with Clearfil DC Core Plus and core build up with Filtek Bulk Fill Posterior (Group 4); specimens that received CAD/CAM crowns after the same procedures performed in Groups 2, 3, and 4, respectively (Groups 5, 6, and 7). Fracture strength tests were performed, and the failure modes were recorded. Data were statistically analyzed using one-way ANOVA and post hoc Tukey tests. The highest fracture resistance was observed in the control group and among the experimental groups in Group 4. Groups 3 and 5 showed similar fracture resistance followed by Group 2. The lowest fracture resistances were seen in the samples of Groups 6 and 7. While the fracture strength of Group 2 increased after the crown placement (Group 5), the fracture strength of Group 3 and Group 4 decreased (P < 0.05). While the specimens in Groups 1, 2, 3, and 4 predominantly showed favorable failure, unfavorable failure was more frequent in Groups 5, 6, and 7.

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Authors and Affiliations

  1. Department of Endodontics, Faculty of Dentistry, Medeniyet University, Istanbul, Turkey

    Taha Özyürek

  2. Private Practice, Samsun, Turkey

    Can Topkara

  3. Oral and Dental Health Center, Osmaniye, Turkey

    İmran Koçak

  4. Department of Endodontics, Faculty of Dentistry, Mustafa Kemal University, Hatay, Turkey

    Koray Yılmaz

  5. Department of Endodontics, Faculty of Dentistry, Medipol University, Istanbul, Turkey

    Mustafa Gündoğar

  6. Department of Endodontics, Faculty of Dentistry, Onsekiz Mart University, Çanakkale, Turkey

    Gülşah Uslu

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  1. Taha Özyürek
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  2. Can Topkara
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  5. Mustafa Gündoğar
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Correspondence to Gülşah Uslu.

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Özyürek, T., Topkara, C., Koçak, İ. et al. Fracture strength of endodontically treated teeth restored with different fiber post and core systems. Odontology 108, 588–595 (2020). https://doi.org/10.1007/s10266-020-00481-4

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  • DOI: https://doi.org/10.1007/s10266-020-00481-4

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