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Volume 15
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Article

Stress Distribution in Radicular Dentin with Different Post and Core Materials: A 3D Finite Element Analysis

by
Turki S. Alkhallagi
1,*,
Ghaida’a A. Moria
2,
Dalya F. Al Khunaizi
3,
Mahmoud Alzahrani
4 and
Thamer Y. Marghalani
1
1
Oral and Maxillofacial Prosthodontics Department, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia
2
University Dental Hospital, King Abdulaziz University, Jeddah 21589, Saudi Arabia
3
Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia
4
Mechanical Engineering Department, Faculty of Engineering, King Abdulaziz University, Jeddah 80204, Saudi Arabia
*
Author to whom correspondence should be addressed.
Appl. Sci. 2025, 15(7), 3515; https://doi.org/10.3390/app15073515
Submission received: 14 January 2025 / Revised: 8 March 2025 / Accepted: 11 March 2025 / Published: 23 March 2025
(This article belongs to the Section Applied Dentistry and Oral Sciences)
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Abstract

This study aims to evaluate the stress distribution of polyetheretherketone (PEEK) and high noble alloy materials in a detailed 3D model of a central incisor using finite element analysis (FEA). A comprehensive 3D model incorporated the crown, crown cement, post and core, post cement, central incisor root, periodontal ligament (PDL), and bone. The PEEK and high noble alloy material properties were input into the model, and the FEA was performed using ABAQUS software. The results showed that while the stresses on the bone, root, and crown increased slightly with the PEEK compared to the high noble alloy, the difference was minimal and attributed to the PEEK’s reduced stiffness. This led to a higher load transfer to surrounding regions around the post. The factor of safety decreased from 16 to 10 when using PEEK, but this reduction was still within acceptable limits and reduced stress-shielding effects. In conclusion, while there was no significant difference in stress magnitudes and distributions between the PEEK and high noble alloys, the PEEK exhibited superior stress-shielding properties, which may offer an advantage in preserving the underlying tooth structure in post and core restorations.
Keywords: PEEK post; high noble alloy post; custom post and core; finite element analysis PEEK post; high noble alloy post; custom post and core; finite element analysis

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MDPI and ACS Style

Alkhallagi, T.S.; Moria, G.A.; Al Khunaizi, D.F.; Alzahrani, M.; Marghalani, T.Y. Stress Distribution in Radicular Dentin with Different Post and Core Materials: A 3D Finite Element Analysis. Appl. Sci. 2025, 15, 3515. https://doi.org/10.3390/app15073515

AMA Style

Alkhallagi TS, Moria GA, Al Khunaizi DF, Alzahrani M, Marghalani TY. Stress Distribution in Radicular Dentin with Different Post and Core Materials: A 3D Finite Element Analysis. Applied Sciences. 2025; 15(7):3515. https://doi.org/10.3390/app15073515

Chicago/Turabian Style

Alkhallagi, Turki S., Ghaida’a A. Moria, Dalya F. Al Khunaizi, Mahmoud Alzahrani, and Thamer Y. Marghalani. 2025. "Stress Distribution in Radicular Dentin with Different Post and Core Materials: A 3D Finite Element Analysis" Applied Sciences 15, no. 7: 3515. https://doi.org/10.3390/app15073515

APA Style

Alkhallagi, T. S., Moria, G. A., Al Khunaizi, D. F., Alzahrani, M., & Marghalani, T. Y. (2025). Stress Distribution in Radicular Dentin with Different Post and Core Materials: A 3D Finite Element Analysis. Applied Sciences, 15(7), 3515. https://doi.org/10.3390/app15073515

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