The comparison of angular and curvilinear marginal mandibulectomy on force distribution with three dimensional finite element analysis |
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| Authors: | Sinan Y. Ertem Sina Uckan Utku Ahmet Ozden |
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| Affiliation: | 1. Department of Oral and Maxillofacial Surgery, School of Dentistry, Baskent University, Ankara, Turkey;2. Institute for Materials Applications in Mechanical Engineering, RWTH Aachen University, Germany;1. Department of Maxillofacial Surgery, University Hospitals of Leicester, Leicester, United Kingdom;2. Budapest University of Technology and Economics, Faculty of Mechanical Engineering, Department of Machine and Product Design, Budapest, Hungary;1. Postgraduate Student in Doctoral Degree Program, Department of Oral and Maxillofacial Surgery, University of Pernambuco, Recife, PE, Brazil;2. Professor and Director, Master and PhD Programs, Department of Oral and Maxillofacial Surgery, University of Pernambuco, Recife, PE, Brazil;3. Senior Lecturer, Department of Microbiology, Federal University of Pernambuco, Recife, PE, Brazil;4. Senior Lecturer, Department of Oral Pathology, University of Pernambuco, Recife, PE, Brazil;6. Professor, Department of Forensic Science, University of Pernambuco, Recife, PE, Brazil;5. Postgraduate Student in Doctoral Degree Program, Department of Oral and Maxillofacial Surgery, University of Pernambuco, Recife, PE, Brazil;1. Department of Oral and Maxillofacial Surgery, Government Dental College & Hospital, Nagpur, Maharashtra, 440003, India;2. Department of Oral and Maxillofacial Surgery, Government Dental College, Nagpur, Maharashtra, 440003, India;3. Department of Mechanical Engineering, VNIT, Nagpur, Maharashtra, India;4. Unit of CranioMaxilloFacial Surgery, St Anna Hospital and University, Viale Aldo Moro, 8, 44124 Ferrara, Cona, Italy;1. Postgraduate Student, PhD Program in Oral and Maxillofacial Surgery, University of Pernambuco, Recife, PE, Brazil;2. Associate Professor, Mechanical Engineering Department, Federal University of Per-nambuco, Recife-PE, Brazil;3. Undergraduate Student, Mechanical Engineering, Federal University of Pernambuco, Recife-PE, Brazil;4. Assistant Professor, Oral and Maxillofacial Surgery, University of Pernambuco, Recife, PE, Brazil;6. Assistant Professor, Oral and Maxillofacial Surgery, University of Pernambuco, Recife, PE, Brazil |
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| Abstract: | AimThe purpose of this study was to analyse and compare right angled and curved osteotomy design on stress distribution and to determine an osteotomy design which decreases the risk of pathologic fracture.Patients and methodsSolid mathematical model of the mandible was created by three dimensional finite element analysis and two different osteotomy, right angled and curvilinear osteotomy was performed on model. 150 N incisal force vertically and 250 N molar force to the angulus area oblically were applied. The effects of osteotomy types to the stress formation and risk of fracture between models were evaluated.ResultsRight angled osteotomy causes much more stress in the posteroinferior quadrant and mainly localized on the horizontal and vertical osteotomy intersection area. On the other hand, the distribution of the stress on curvilinear formed osteotomy shows posteroinferior localization and stress spreads wider area. Furthermore the amount of stress was less than right-angled one.ConclusionIn this study, curved osteotomy denominated less stress distribution. The shape of osteotomy might be a factor to decrease the risk of postoperative atrophic mandible fracture. |
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