Resistance and Stress Analysis of 3D Plate and Locking Plate Fixation in Bilateral Sagittal Split Osteotomy: A Comparative Finite Element Study.

Autor: Banakar VT; Department of Oral and Maxillofacial Surgery, The Oxford Dental College, Bommanahalli, Hosur Road, Bangalore, 560068 India., Bhandage S; Department of Oral and Maxillofacial Surgery, The Oxford Dental College, Bommanahalli, Hosur Road, Bangalore, 560068 India., Harish Kumar A; Department of Oral and Maxillofacial Surgery, The Oxford Dental College, Bommanahalli, Hosur Road, Bangalore, 560068 India., Swennen GRJ; Department of Surgery, General Hospital St-Jan Bruges, Brugge, Belgium.
Jazyk: angličtina
Zdroj: Journal of maxillofacial and oral surgery [J Maxillofac Oral Surg] 2023 Dec; Vol. 22 (4), pp. 856-860. Date of Electronic Publication: 2023 Sep 07.
DOI: 10.1007/s12663-023-01971-y
Abstrakt: Aim: This study evaluates the biomechanical properties of 3D plates and compares it with locking plates, in both set back and advancement models of bilateral sagittal split osteotomy (BSSO) using finite element model analysis.
Design: A stereolithography model of mandibular structure was imported to hypermesh to create 3D solid finite model. A BSSO was simulated on hemimandibular model and advancement and setback simulations were carried out for a distance of 4, 6, and 8 mm each. 3D plates for the right side and locking plates for the left side were simulated for fixation. Meshing of the model was carried out. After meshing, the model was imported to Ansys V18.1 for analysis of it. Forces simulating the masticatory muscles were applied on both sides. The values for stress and resistance in the screws and plates were measured and the lowest and highest deformation regions were estimated using von Mises analysis.
Results: The results suggest that the tension and resistance as measured through were better distributed in 3D plates when compared with that of locking plates; the stress concentration was shown to be higher in the locking plates and deformation resistance was greater in 3D plates.
Conclusion: The application of 3D plating system has found its place in the field of maxillofacial trauma. However, its application in the field of orthognathic surgery is yet to be explored and this study encourages us to conduct in vivo studies.
Competing Interests: Conflict of interestThe authors declare no conflict of interest.
(© The Association of Oral and Maxillofacial Surgeons of India 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.)
Databáze: MEDLINE
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