Stress distribution for mandibular extra-alveolar anchorage at different angles and force magnitudes: a finite element study

E. V. Arango-Piloneta, S. P. Plaza-Ruiz, D. F. León-Lara, M. Munera, B. Bedoya-Henao and T. Martínez-Gallego

Computer Methods in Biomechanics and Biomedical Engineering, 2024, vol. 27, issue 12, 1587-1595

Abstract: The aim of this study was to evaluate the stress distribution in cortical and cancellous bones and within the screw when a stainless steel extra-alveolar screw (EA-S) is inserted into the retromolar region of the mandible using the finite element method (FEM). The stress values in the EA-S were highest at 60° with horizontal (shear) force and lowest at 90° with axial force. In the bones (cortical and cancellous), the stress value was greatest at 90° with horizontal force. Greater stability of the screw may be achieved by tilting it to the force when horizontal loads are applied.

Date: 2024
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DOI: 10.1080/10255842.2023.2252549

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