Abstract
The mandible is the bone most involved in maxillofacial injuries. Maxillofacial trauma is a regularly reported occurrence in the emergency room. This paper aims to identify the strain and stress state on osteosynthesis plates applied when connecting a lateral mandible fracture. A cone beam computed tomography (CBCT) was used initially and using the RadiAnt DICOM Viewer software, it was possible to view the skull along with the anatomical area of interest in a three-dimensional space. The mandible was observed to have maxillofacial trauma on the left side and also a mandibular condyle fracture on the right side. Using ITK-SNAP, the mandibular was reconstructed. Smoothing of the surface of the STL model exported from ITK-Snap was performed in the Autodesk Meshmixer application. The format from the Meshmixer program shows an object whose surface has been meshed into triangles and is not recognized as a volume used by 3D modeling programs. To realize a mandible with low rugosity with merged surfaces, the CAD program SpaceClaim was used. A FEM analysis was performed to identify the representative area on the plate surface and to understand the stress–strain state from this mandible case study.
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