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Year : 2016  |  Volume : 19  |  Issue : 1  |  Page : 140-144

Biomechanical analysis of titanium fixation plates and screws in sagittal split ramus osteotomies

1 Department of Biomedical Engineering, Faculty of Engineering,Institute of science, Düzce University, Ankara, Turkey
2 Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Gazi University, Ankara, Turkey
3 Department of Biomedical Engineering, Faculty of Engineering, Düzce University, Düzce, Turkey

Correspondence Address:
M Arslan
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Gazi University, Emek, Ankara
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1119-3077.164331

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Objective: The aim of the study was to evaluate the mechanical behavior of three different fixation methods used in the bilateral sagittal split ramus osteotomy. Materials and Methods: Three different three-dimensional finite element models were created, each corresponding to three different fixation methods. The mandibles were fixed with double straight 4-hole, square 4-hole, and 5-hole Y plates. 150 N incisal occlusal loads were simulated on the distal segments. ANSYS software ((v 10; ANSYS Inc., Canonsburg, PA) was used to calculate the Von Mises stresses on fixative appliances. Results: The highest Von Mises stress values were found in Y plate. The lowest values were isolated in double straight plate group. Conclusions: It was concluded that the use of double 4-hole straight plates provided the sufficient stability on the osteotomy site when compared with the other rigid fixation methods used in this study.

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