Custom-Made Titanium Mesh Tray for Mandibular Reconstruction Using an Electron Beam Melting System
| Autor: | Kei Onodera, Tadaharu Minamino, Isao Hoshi, Ikuya Miyamoto, Hiroyuki Yamada, Tadashi Kawai, Shingo Kurosu |
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| Rok vydání: | 2021 |
| Předmět: |
Technology
Electron-beam additive manufacturing Materials science custom-made titanium mesh tray Stacking chemistry.chemical_element Article General Materials Science Composite material Microscopy QC120-168.85 electron beam additive manufacturing QH201-278.5 Titanium alloy Engineering (General). Civil engineering (General) TK1-9971 Bite force quotient Honeycomb structure Tray chemistry Descriptive and experimental mechanics Cathode ray Electrical engineering. Electronics. Nuclear engineering TA1-2040 optimization mandibular reconstruction Titanium |
| Zdroj: | Materials Volume 14 Issue 21 Materials, Vol 14, Iss 6556, p 6556 (2021) |
| ISSN: | 1996-1944 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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