Implementation of FEM and rapid prototyping in maxillofacial surgery
This paper investigates the opportunity of implementing FE simulations and rapid prototyping techniques on titanium implant in maxillofacial surgery case based on osteotomy. Maxilla region was recorded by Cone Beam CT with high resolution and optimal radiation. Then, it followed the medical image re...
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| Format: | Article |
| Language: | English |
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University of Belgrade - Faculty of Mechanical Engineering, Belgrade
2016-01-01
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| Series: | FME Transactions |
| Subjects: | |
| Online Access: | https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2016/1451-20921604422S.pdf |
| _version_ | 1819172024915853312 |
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| author | Šljivić Milan Stanojević M. Đurđević D. Grujović N. Pavlović A. |
| author_facet | Šljivić Milan Stanojević M. Đurđević D. Grujović N. Pavlović A. |
| author_sort | Šljivić Milan |
| collection | DOAJ |
| description | This paper investigates the opportunity of implementing FE simulations and rapid prototyping techniques on titanium implant in maxillofacial surgery case based on osteotomy. Maxilla region was recorded by Cone Beam CT with high resolution and optimal radiation. Then, it followed the medical image reconstruction into 3D voxelized model. This model was converted both, to stl surface model for rapid prototyping, CAD modeling and FE mesh for simulation purposes with keeping good volume and dimensional consistency. Stl meshed surface was imported into CAD software, as initial 3d structure, which is used for parametric and customized design of implant. Since, the osteotomy is final application, it was simulated the cutting and shifting of maxilla for proper correction by digital prototyping. Then, the fixation points for shifted maxilla were determined by surgeon to provide steady and tight joints between implanting screws and maxilla. Applied implant was given in initial standard flat configuration. Flat implant configuration was adapted by complex 3D bending in CAD software to be customized towards surface conformity of maxillofacial anatomy. By FE simulation in MSC Patran/Nastran, it was performed the stress analysis of implant with different thickness configurations and 3D bending, which provides the optimized implant model with best fit dimensions. Optimized implant model and corresponding body model were converted into physical models. RP model of maxilla was post-processed by cutting and boring to provide an adequate implant positioning according to digital prototypes. This approach facilitated the preparation of complex shaped implants in swept and lofted form, what had to be in high degree of conformity to anatomy surface. To approve a good practical opportunity, it was applied and tested in concrete surgery case of maxillofacial osteotomy. |
| first_indexed | 2024-12-22T20:00:37Z |
| format | Article |
| id | doaj.art-da1a0adca06a49bfbd8367702fc7f6d9 |
| institution | Directory Open Access Journal |
| issn | 1451-2092 2406-128X |
| language | English |
| last_indexed | 2024-12-22T20:00:37Z |
| publishDate | 2016-01-01 |
| publisher | University of Belgrade - Faculty of Mechanical Engineering, Belgrade |
| record_format | Article |
| series | FME Transactions |
| spelling | doaj.art-da1a0adca06a49bfbd8367702fc7f6d92022-12-21T18:14:18ZengUniversity of Belgrade - Faculty of Mechanical Engineering, BelgradeFME Transactions1451-20922406-128X2016-01-014444224291451-20921604422SImplementation of FEM and rapid prototyping in maxillofacial surgeryŠljivić Milan0Stanojević M.1Đurđević D.2Grujović N.3Pavlović A.4University of Banja Luka, Faculty of Mechanical Engineering, Bosnia and HerzegovinaUniversity of Banja Luka, Faculty of Mechanical Engineering, Bosnia and HerzegovinaUniversity of Banja Luka, Faculty of Medicine, Bosnia and HerzegovinaUniversity of Kragujevac, Faculty of Engineering ScienceAlma Mater University of Bologna, Department of Industrial Engineering, ItalyThis paper investigates the opportunity of implementing FE simulations and rapid prototyping techniques on titanium implant in maxillofacial surgery case based on osteotomy. Maxilla region was recorded by Cone Beam CT with high resolution and optimal radiation. Then, it followed the medical image reconstruction into 3D voxelized model. This model was converted both, to stl surface model for rapid prototyping, CAD modeling and FE mesh for simulation purposes with keeping good volume and dimensional consistency. Stl meshed surface was imported into CAD software, as initial 3d structure, which is used for parametric and customized design of implant. Since, the osteotomy is final application, it was simulated the cutting and shifting of maxilla for proper correction by digital prototyping. Then, the fixation points for shifted maxilla were determined by surgeon to provide steady and tight joints between implanting screws and maxilla. Applied implant was given in initial standard flat configuration. Flat implant configuration was adapted by complex 3D bending in CAD software to be customized towards surface conformity of maxillofacial anatomy. By FE simulation in MSC Patran/Nastran, it was performed the stress analysis of implant with different thickness configurations and 3D bending, which provides the optimized implant model with best fit dimensions. Optimized implant model and corresponding body model were converted into physical models. RP model of maxilla was post-processed by cutting and boring to provide an adequate implant positioning according to digital prototypes. This approach facilitated the preparation of complex shaped implants in swept and lofted form, what had to be in high degree of conformity to anatomy surface. To approve a good practical opportunity, it was applied and tested in concrete surgery case of maxillofacial osteotomy.https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2016/1451-20921604422S.pdfcone beam ctfinite element methodrapid prototypingparametric customization of implants |
| spellingShingle | Šljivić Milan Stanojević M. Đurđević D. Grujović N. Pavlović A. Implementation of FEM and rapid prototyping in maxillofacial surgery FME Transactions cone beam ct finite element method rapid prototyping parametric customization of implants |
| title | Implementation of FEM and rapid prototyping in maxillofacial surgery |
| title_full | Implementation of FEM and rapid prototyping in maxillofacial surgery |
| title_fullStr | Implementation of FEM and rapid prototyping in maxillofacial surgery |
| title_full_unstemmed | Implementation of FEM and rapid prototyping in maxillofacial surgery |
| title_short | Implementation of FEM and rapid prototyping in maxillofacial surgery |
| title_sort | implementation of fem and rapid prototyping in maxillofacial surgery |
| topic | cone beam ct finite element method rapid prototyping parametric customization of implants |
| url | https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2016/1451-20921604422S.pdf |
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