Novel Design and Optimization of Porous Titanium Structure for Mandibular Reconstruction.
Journal
Applied bionics and biomechanics
ISSN: 1176-2322
Titre abrégé: Appl Bionics Biomech
Pays: Egypt
ID NLM: 101208624
Informations de publication
Date de publication:
2022
2022
Historique:
received:
09
12
2021
revised:
13
05
2022
accepted:
30
05
2022
entrez:
5
7
2022
pubmed:
6
7
2022
medline:
6
7
2022
Statut:
epublish
Résumé
A porous material is considered to be a potential material that can be used to repair bone defects. However, the methods of designing of a highly porous structure within the allowable stress range remain to be researched. Therefore, this study was aimed at presenting a method for generating a three-dimensional tetrahedral porous structure characterized by low peak stress and high porosity for the reconstruction of mandibular defects. Firstly, the initial tetrahedral porous structure was fabricated with the strut diameters set to 0.4 mm and a mean cell size of 2.4 mm in the design model space. Following this, the simulation analysis was carried out. Further, a homogenization algorithm was used for homogenizing the stress distribution, increasing porosity, and controlling peak stress of the porous structure by adjusting the strut diameters. The results showed that compared with the initial porous structure, the position of the large stress regions remained unchanged, and the peak stress fluctuated slightly in the mandible and fixation system with the optimized porous structure under two occlusions. The optimized porous structure had a higher porosity and more uniform stress distribution, and the maximum stress was lower than the target stress value. The design and optimization technique of the porous structure presented in this paper can be used to control peak stress, improve porosity, and fabricate a lightweight scaffold, which provides a potential solution for mandibular reconstruction.
Identifiants
pubmed: 35782881
doi: 10.1155/2022/8686670
pmc: PMC9249542
doi:
Types de publication
Journal Article
Langues
eng
Pagination
8686670Informations de copyright
Copyright © 2022 Renshun Liu et al.
Déclaration de conflit d'intérêts
The authors declare that they have no conflicts of interest.
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