Evaluation Of Stress And Strain On Surgical Screws And Plates In Mandibular Trunk Fractures At Different Positions Of Plates And Screws: Finite Element Analysis
Abstract
Introduction: To determine the most appropriate method for placement of plates and screws in terms of stress in mandibular body fractures using finite element analysis. Materials and Methods: First a model of the mandible reconstructed with Mimics software. This study employed various methods, including plates positioned parallel to the inferior border of the mandible with screws perpendicular to the bone; plates parallel to the inferior border of the mandible fixed with screws oriented at a 45-degree to the fracture line; plates positioned perpendicular to the fracture line fixed with screws perpendicular to the bone; plates perpendicular to the fracture line and fixed with screws oriented at a 45-degree to the fracture line. Then the software measured the stress within the screws and plates in each condition under the maximum bite force.Results: It was observed that in cases of favorable horizontal fractures, the stress exerted on the plates and bones is greater when the plates are aligned parallel to the lower border of mandible, compared to when the plates are positioned perpendicular to the fracture line. In the study of unfavorable horizontal fractures, when the plates were fixed perpendicular to the fracture line, higher magnitudes of stress were recorded compared to the stress observed in the plates positioned parallel to the inferior border of the mandible.Conclusion: In cases of mandibular body fractures with favorable horizontal orientations, the use of fixation techniques involving plates perpendicular to the fracture line is preferred due to the reduced stress exerted on the plates. In the unfavorable horizontal fractures, the stress levels do not exhibit significant variation between different fixations. Finally, it is not advisable to utilize screws positioned at a 45-degree angle to the fracture line, as it can lead to an increase in the displacement of the plates.Keywords: Finite element analysis; Mandibular fracture; Stress and strain; Surgical plates and screws.
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12. Darwich MA, Albogha MH, Abdelmajeed A, Darwich K. Assessment of the Biomechanical Performance of 5 Plating Techniques in Fixation of Mandibular Subcondylar Fracture Using Finite Element Analysis. J Oral Maxillofac Surg. 2016;74(4):794.e1-8.
13. Huang C-M, Chan M-Y, Hsu J-T, Su K-C. Biomechanical analysis of subcondylar fracture fixation using miniplates at different positions and of different lengths. BMC Oral Health. 2021;21.
14. Jansen van Vuuren L, Broadbent J, Duncan W, Waddell J. Maximum voluntary bite force, occlusal contact points and associated stresses on posterior teeth. J. R. Soc. N. Z. 2019;50:1-12.
15. Aleksanyan LV, Poghosyan AY, Misakyan MS, Minasyan AM, Bablumyan AY, Tadevosyan AE, et al. Epidemiology of maxillofacial injuries in "Heratsi" No 1 university hospital in Yerevan, Armenia: a retrospective study. BMC Oral Health. 2022;22(1):123.
2. Ioannides C, Freihofer HP, Bruaset I. Trauma of the upper third of the face. Management and follow-up. J Maxillofac Surg. 1984;12(6):255-61.
3. Olate S, de Assis AF, Pozzer L, Cavalieri-Pereira L, Asprino L, de Moraes M. Pattern and treatment of mandible body fracture. Int J Burns Trauma. 2013;3(3):164-8.
4. Shirinbak I, Baradaran Bagheri A, Kharazifard MJ, Goharshenasan P, Pirouzan M. Prevalence of maxillofacial fractures in hospital patients: A five year retrospective study. Jorjani Biomed J. 2020;8(3):75-81.
5. Farzan R, Farzan A, Farzan A, Karimpour M, Tolouie M. A 6-Year Epidemiological Study of Mandibular Fractures in Traumatic Patients in North of Iran: Review of 463 Patients. World J Plast Surg. 2021;10(1):71-7.
6. King RE, Scianna JM, Petruzzelli GJ. Mandible fracture patterns: a suburban trauma center experience. Am J Otolaryngol. 2004;25(5):301-7.
7. Uckan S, Veziroglu F, Soydan SS, Uckan E. Comparison of stability of resorbable and titanium fixation systems by finite element analysis after maxillary advancement surgery. J Craniofac Surg. 2009;20(3):775-9.
8. Zachariades N, Papademetriou I, Rallis G. Complications associated with rigid internal fixation of facial bone fractures. J Oral Maxillofac Surg : official journal of the American Association of Oral and Maxillofacial Surgeons. 1993;51(3):275-8; discussion 8-9.
9. Wakabayashi N, Ona M, Suzuki T, Igarashi Y. Nonlinear finite element analyses: Advances and challenges in dental applications. J Dent. 2008;36:463-71.
10. Weinstein A, Klawitter J, Anand S, Schuessler R. Stress Analysis of Porous Rooted Dental Implants. J Dent Res. 1976;55:772-7.
11. Lisiak-Myszke M, Marciniak D, Bieliński M, Sobczak H, Garbacewicz Ł, Drogoszewska B. Application of Finite Element Analysis in Oral and Maxillofacial Surgery-A Literature Review. Materials (Basel). 2020;13(14).
12. Darwich MA, Albogha MH, Abdelmajeed A, Darwich K. Assessment of the Biomechanical Performance of 5 Plating Techniques in Fixation of Mandibular Subcondylar Fracture Using Finite Element Analysis. J Oral Maxillofac Surg. 2016;74(4):794.e1-8.
13. Huang C-M, Chan M-Y, Hsu J-T, Su K-C. Biomechanical analysis of subcondylar fracture fixation using miniplates at different positions and of different lengths. BMC Oral Health. 2021;21.
14. Jansen van Vuuren L, Broadbent J, Duncan W, Waddell J. Maximum voluntary bite force, occlusal contact points and associated stresses on posterior teeth. J. R. Soc. N. Z. 2019;50:1-12.
15. Aleksanyan LV, Poghosyan AY, Misakyan MS, Minasyan AM, Bablumyan AY, Tadevosyan AE, et al. Epidemiology of maxillofacial injuries in "Heratsi" No 1 university hospital in Yerevan, Armenia: a retrospective study. BMC Oral Health. 2022;22(1):123.
| Files | ||
| Issue | Vol 10, No 4 (Autumn 2023) | |
| Section | Original Article(s) | |
| DOI | https://doi.org/10.18502/jcr.v10i4.15312 | |
| Keywords | ||
| Finite element analysi Mandibular fracture Stress and strain Surgical plates and screws | ||
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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
How to Cite
1.
Sadeghi A, Parhiz A. Evaluation Of Stress And Strain On Surgical Screws And Plates In Mandibular Trunk Fractures At Different Positions Of Plates And Screws: Finite Element Analysis. J Craniomaxillofac Res. 2024;10(4):195-200.
