RESEARCH ARTICLE


A Three – Dimensional Finite Element Analysis of Polyetheretherketone PEEK in Dental Implant Prosthesis: A Novel Implant System



Noor Al-Mortadi1, *, Khaled Bataineh2, Isra Albakri2
1 Department of Applied Dental Sciences, Jordan University of Science and Technology, Irbid, Jordan
2 Department of Mechanical Engineering, Jordan University of Science and Technology, P O Box 3030, Irbid, 22110 – Jordan


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Creative Commons License
© 2022 Al-Mortadi et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Applied Dental Sciences, Jordan University of Science and Technology, P O Box 3030, Irbid, 22110 – Jordan; Tel: +962 2 7201000; Ext. 26887; Fax: +962 2 7201074; E-mail: naalmortadi@just.edu.jo


Abstract

Purpose:

This current numerical investigation aim to evaluate the benefits of substituting Titanium with CRF- PEEK for better stress distribution in implant- bone interface.

Methods:

3D models of a dental implant for the first mandibular molar were constructed using the computed tomography (CT) scan. Four distinct models using a combination of titanium, carbon reinforced polyetheretherketone (CRF- PEEK), and zirconia for implant /abutment materials were studied. A three- dimensional finite element simulation was used to evaluate the stress distribution at the implant – bone interface under a compressive axial load of magnitude 120 N. A spherical indenter was used to simulate occlusal load.

Results:

Mesh independent study was converged for a very large number of elements. Finite element analysis showed: 1) there was no significant difference in the distribution pattern of stress at the implant – bone interface in the different material models studied, 2) the stress values for all prosthetic implant parts were well below the yield strength, 3) a larger deformation of PEEK implant versus titanium.

Conclusion:

The substitution of titanium with PEEK for the implant does not provide any better stress distribution and may lead to problems from the deformation of the implant.

Keywords: Biomechanics, Finite element analysis, Biomaterials, Material sciences, Periodontology, Prosthodontics.