Custom-Made Titanium Mesh Tray for Mandibular Reconstruction Using an Electron Beam Melting System

Mandibular reconstruction using a titanium mesh tray and autologous bone is a common procedure in oral and maxillofacial surgery. However, there can be material problems—such as broken titanium mesh trays—which may undermine long-term functionality. This study was designed to investigate the optimal...

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Autores principales:	Isao Hoshi, Tadashi Kawai, Shingo Kurosu, Tadaharu Minamino, Kei Onodera, Ikuya Miyamoto, Hiroyuki Yamada
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	custom-made titanium mesh tray electron beam additive manufacturing mandibular reconstruction optimization Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/6e5b6511828948819157e69bba968334
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spelling	oai:doaj.org-article:6e5b6511828948819157e69bba9683342021-11-11T18:06:37ZCustom-Made Titanium Mesh Tray for Mandibular Reconstruction Using an Electron Beam Melting System10.3390/ma142165561996-1944https://doaj.org/article/6e5b6511828948819157e69bba9683342021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6556https://doaj.org/toc/1996-1944Mandibular reconstruction using a titanium mesh tray and autologous bone is a common procedure in oral and maxillofacial surgery. However, there can be material problems—such as broken titanium mesh trays—which may undermine long-term functionality. This study was designed to investigate the optimal conditions for a titanium mesh tray with an ideal mandibular shape and sufficient strength, using computer-aided design, computer-aided manufacturing technology, and electron beam additive manufacturing. Specimens were prepared using Ti-6Al-4V extra low interstitial titanium alloy powder and an electron beam melting (EBM) system. The mechanical strength of the plate-shaped specimens was examined for differences in the stretch direction with respect to the stacking direction and the presence or absence of surface treatment. While evaluating the mechanical strength of the tray-shaped specimens, the topology was optimized and specimens with a honeycomb structure were also verified. Excellent mechanical strength was observed under the condition that the specimen was stretched vertically in the stacking direction and the surface was treated. The results of the tray-shaped specimens indicated that the thickness was 1.2 mm, the weight reduction rate was 20%, and the addition of a honeycomb structure could withstand an assumed bite force of 2000 N. This study suggests that the EBM system could be a useful technique for preparing custom-made titanium mesh trays of sufficient strength for mandibular reconstruction by arranging various manufacturing conditions.Isao HoshiTadashi KawaiShingo KurosuTadaharu MinaminoKei OnoderaIkuya MiyamotoHiroyuki YamadaMDPI AGarticlecustom-made titanium mesh trayelectron beam additive manufacturingmandibular reconstructionoptimizationTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6556, p 6556 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	custom-made titanium mesh tray electron beam additive manufacturing mandibular reconstruction optimization Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	custom-made titanium mesh tray electron beam additive manufacturing mandibular reconstruction optimization Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Isao Hoshi Tadashi Kawai Shingo Kurosu Tadaharu Minamino Kei Onodera Ikuya Miyamoto Hiroyuki Yamada Custom-Made Titanium Mesh Tray for Mandibular Reconstruction Using an Electron Beam Melting System
description	Mandibular reconstruction using a titanium mesh tray and autologous bone is a common procedure in oral and maxillofacial surgery. However, there can be material problems—such as broken titanium mesh trays—which may undermine long-term functionality. This study was designed to investigate the optimal conditions for a titanium mesh tray with an ideal mandibular shape and sufficient strength, using computer-aided design, computer-aided manufacturing technology, and electron beam additive manufacturing. Specimens were prepared using Ti-6Al-4V extra low interstitial titanium alloy powder and an electron beam melting (EBM) system. The mechanical strength of the plate-shaped specimens was examined for differences in the stretch direction with respect to the stacking direction and the presence or absence of surface treatment. While evaluating the mechanical strength of the tray-shaped specimens, the topology was optimized and specimens with a honeycomb structure were also verified. Excellent mechanical strength was observed under the condition that the specimen was stretched vertically in the stacking direction and the surface was treated. The results of the tray-shaped specimens indicated that the thickness was 1.2 mm, the weight reduction rate was 20%, and the addition of a honeycomb structure could withstand an assumed bite force of 2000 N. This study suggests that the EBM system could be a useful technique for preparing custom-made titanium mesh trays of sufficient strength for mandibular reconstruction by arranging various manufacturing conditions.
format	article
author	Isao Hoshi Tadashi Kawai Shingo Kurosu Tadaharu Minamino Kei Onodera Ikuya Miyamoto Hiroyuki Yamada
author_facet	Isao Hoshi Tadashi Kawai Shingo Kurosu Tadaharu Minamino Kei Onodera Ikuya Miyamoto Hiroyuki Yamada
author_sort	Isao Hoshi
title	Custom-Made Titanium Mesh Tray for Mandibular Reconstruction Using an Electron Beam Melting System
title_short	Custom-Made Titanium Mesh Tray for Mandibular Reconstruction Using an Electron Beam Melting System
title_full	Custom-Made Titanium Mesh Tray for Mandibular Reconstruction Using an Electron Beam Melting System
title_fullStr	Custom-Made Titanium Mesh Tray for Mandibular Reconstruction Using an Electron Beam Melting System
title_full_unstemmed	Custom-Made Titanium Mesh Tray for Mandibular Reconstruction Using an Electron Beam Melting System
title_sort	custom-made titanium mesh tray for mandibular reconstruction using an electron beam melting system
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6e5b6511828948819157e69bba968334
work_keys_str_mv	AT isaohoshi custommadetitaniummeshtrayformandibularreconstructionusinganelectronbeammeltingsystem AT tadashikawai custommadetitaniummeshtrayformandibularreconstructionusinganelectronbeammeltingsystem AT shingokurosu custommadetitaniummeshtrayformandibularreconstructionusinganelectronbeammeltingsystem AT tadaharuminamino custommadetitaniummeshtrayformandibularreconstructionusinganelectronbeammeltingsystem AT keionodera custommadetitaniummeshtrayformandibularreconstructionusinganelectronbeammeltingsystem AT ikuyamiyamoto custommadetitaniummeshtrayformandibularreconstructionusinganelectronbeammeltingsystem AT hiroyukiyamada custommadetitaniummeshtrayformandibularreconstructionusinganelectronbeammeltingsystem
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Custom-Made Titanium Mesh Tray for Mandibular Reconstruction Using an Electron Beam Melting System

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