Dental application of novel finite element analysis software for three-dimensional finite element modeling of a dentulous mandible from its computed tomography images

Abstract

This study focused on the application of novel finite-element analysis software for constructing a finite-element model from the computed tomography data of a human dentulous mandible. The finite-element model is necessary for evaluating the mechanical response of the alveolar part of the mandible, resulting from occlusal force applied to the teeth during biting. Commercially available patient-specific general computed tomography-based finite-element analysis software was solely applied to the finite-element analysis for the extraction of computed tomography data. The mandibular bone with teeth was extracted from the original images. Both the enamel and the dentin were extracted after image processing, and the periodontal ligament was created from the segmented dentin. The constructed finite-element model was reasonably accurate using a total of 234,644 nodes and 1,268,784 tetrahedral and 40,665 shell elements. The elastic moduli of the heterogeneous mandibular bone were determined from the bone density data of the computed tomography images. The results suggested that the software applied in this study is both useful and powerful for creating a more accurate three-dimensional finite-element model of a dentulous mandible from the computed tomography data without the need for any other software.

First Clinical Experience with the ICX-Active Master Implant System: A 3-year Retrospective Study

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Analiza modelowa układu stomatognatycznego przy odbudowach z zastosowaniem mostów protetycznych

“…jako: mosty ceramiczne, mosty licowane ceramiką na podbudowie metalowej oraz mosty korundowe. Modelowanie rozwiązania konstrukcyjnego uzupełnienia prowadzone było na wirtualnym modelu żuchwy, który opracowano na podstawie procedury odwzorowania badanego obiektu w warunkach in vitro oraz CT [1,2]. Automatycznie generowano krzywe ograniczające wyselekcjonowane obszary (szkliwo, zębina, miazga, ozębna, kość korowa, kość gąbczasta, ceramika, stop NiCrMo).…”