Nofal A¹*, Elbasty R² and Zaki AA³

¹Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Cairo, Egypt and A. Lecturer, Fixed Prosthodontics Division, School of Dentistry, Newgiza University, Giza, Egypt
²A. Professor, Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Cairo, Egypt and Head of Fixed Prosthodontics Division, School of Dentistry, Newgiza University, Giza, Egypt
³3Professor and Head of Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Cairo, Egypt

*Corresponding Author: Nofal A, Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Cairo, Egypt and A. Lecturer, Fixed Prosthodontics Division, School of Dentistry, Newgiza University, Giza, Egypt.

Received: March 14, 2022; Published: March 21, 2022

Abstract

Aim: The aim of this in-vitro study was to evaluate the bond strength of ready-made glass fiber post and custom-made composite resin posts to root canal dentin.

Methodology: The present study was conducted using 24 extracted human maxillary incisors which were decapitated, root canal treated and prepared to receive a post. Teeth were then divided into 2 equal groups (n = 12): Group (FP) received a ready-made glass fiber post (RelyX Post) and Group (CP) received a custom-made composite resin post. Posts were cemented using self-adhesive resin cement (RelyX U200). Teeth were then mounted in acrylic blocks and sectioned horizontally perpendicular to their long axis to obtain a coronal, middle and apical section from each root. Specimens were then subjected to the push-out test using a universal testing machine at a cross-head speed of 1mm/min.

Results: For both groups, there was no significant difference between the mean push-out bond strength of the coronal, middle and apical sections (Apical > Middle > Coronal). The custom-made composite resin post showed significantly higher mean push-out bond strength than the ready-made glass fiber post in the coronal, middle and apical segments (Apical > Middle > Coronal).

Conclusions: Within the limitations of this in-vitro study, it can be concluded that the technique followed for the fabrication of the custom-made composite resin post might be considered as a promising technique in terms of enhancing the bond strength of the resulted post to the root canal dentine. The composite resin material used for the fabrication of the custom-made composite resin post achieved satisfactory bond strength values to the root canal dentine when combined with the investigated self-adhesive resin cement.

Keywords: Push-Out; Bond Strength; Fiber Post; Resin Cement; Custom-Made Post; Ready-Made Post

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Citation

Citation: Nofal A., et al. “Evaluation of Bond Strength to Root Canal Dentine for Ready-Made Glass Fiber Post and Custom-Made Composite Resin Post (An In-vitro study)".Acta Scientific Dental Sciences 6.4 (2022): 80-87.

Copyright

Copyright: © 2022 Nofal A., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.