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Odontology

pp 1–8 | Cite as

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

  • Taha Özyürek
  • Can Topkara
  • İmran Koçak
  • Koray Yılmaz
  • Mustafa Gündoğar
  • Gülşah UsluEmail author
Original Article
  • 15 Downloads

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.

Keywords

Mandibular premolar Endodontically treated teeth Fiber post CAD/CAM Fracture resistance 

Notes

Funding

This article was not funded by any institution or organization.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

For this type of study, formal consent is not required.

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Copyright information

© The Society of The Nippon Dental University 2020

Authors and Affiliations

  1. 1.Department of Endodontics, Faculty of DentistryMedeniyet UniversityIstanbulTurkey
  2. 2.Private PracticeSamsunTurkey
  3. 3.Oral and Dental Health CenterOsmaniyeTurkey
  4. 4.Department of Endodontics, Faculty of DentistryMustafa Kemal UniversityHatayTurkey
  5. 5.Department of Endodontics, Faculty of DentistryMedipol UniversityIstanbulTurkey
  6. 6.Department of Endodontics, Faculty of DentistryOnsekiz Mart UniversityÇanakkaleTurkey

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