Assessment of Stress Shielding around a Dental Implant for Variation of Implant Stiffness and Parafunctional Loading using Finite Element Analysis
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Published:2022
Issue:3
Volume:24
Page:
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ISSN:1509-409X
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Container-title:Acta of Bioengineering and Biomechanics
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language:en
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Short-container-title:Acta Bioeng Biomech
Author:
Ishak_ Muhammad,Daud Ruslizam,Noor Siti,Noor Fazliah Mohd,Khor Chu Yee,Roslan Husniyati
Abstract
Purpose
The aim of this study was to evaluate the mechanical stimuli transfer at the bone-implant interface via stress and strain energy density transfer parameters. This study also aimed to investigate the effect of different implant stiffness and parafunctional loading values on the defined mechanical stimuli transfer from the implant to the surrounding bone.
Methods
A three-dimensional finite element model of two-piece threaded dental implant with internal hexagonal connection and mandibular bone block was constructed. Response surface method through face-centred central composite design was applied to examine the influence of two independent factors variables using three levels. The analysis model fitted to a second-order polynomial equation to determine the response values.
Results
The results showed that the implant stiffness was more effective than the horizontal load value in increasing the stress and strain energy density transfers. The interaction between both factors was significant in decreasing the likelihood of bone resorption. Decreasing the implant stiffness and horizontal load value led to the increased stress transfer and unexpected decrease in the strain energy density except at the minimum level of the horizontal load. The increase in the implant stiffness and horizontal load value (up to medium level) have increased the strain energy transfer to the bone.
Conclusions
The stress and strain energy density were transferred distinctively at the bone-implant interface. The role of both implant stiffness and parafunctional loading is important and should be highlighted in the pre-operative treatment planning and design of dental implant.
Publisher
Politechnika Wroclawska Oficyna Wydawnicza
Subject
Biomedical Engineering,Biomaterials,Bioengineering,Biophysics
Cited by
3 articles.
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