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Updated: Jun 22, 2026
Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion
Published on: October 20, 2023
Comparison of stability of resorbable and titanium fixation systems by finite element analysis after maxillary
Sina Uckan1, Firdevs Veziroglu, Sidika Sinem Soydan
1Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Baskent University, Ankara, Turkey.
Abstract:
In this study, three-dimensional modeling and finite element analysis were used to evaluate and compare the stability of Le Fort I osteotomy fixed with titanium and resorbable fixation systems under molar and incisor bite forces. A three-dimensional model of 5-mm advanced hemimaxilla was generated. Contact analyses between the upper and lower segments were prescribed. Two L-plates were inserted on this model via simulation. Displacement, principal stresses, and principal elastic strains were evaluated under 44-N, 125-N incisor and, 250-N molar bite forces. These results suggest that Le Fort I osteotomies fixed with titanium miniplates and screws were stable under all tested forces. However, in resorbable group, under incisor bite forces greater than 44 N, there is a great risk of plate fracture, screw deformation, and/or failure.
