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 The influence of data shape acquisition process and geometric accuracy of the mandible for numerical simulation
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/6123

title: The influence of data shape acquisition process and geometric accuracy of the mandible for numerical simulation
authors: Relvas, C.
Ramos, A.
Completo, A.
Simões, J.A.
keywords: 3D anatomical models
data shape acquisition
temporo-mandibular joint
orthopaedic implants
medical models
mandible
issue date: 2011
abstract: Computer-aided technologies have allowed new 3D modelling capabilities and engineering analyses based on experimental and numerical simulation. It has enormous potential for product development, such as biomedical instrumentation and implants. However, due to the complex shapes of anatomical structures, the accuracy of these technologies plays an important key role for adequate and accurate finite element analysis (FEA). The objective of this study was to determine the influence of the geometry variability between two digital models of a human model of the mandible. Two different shape acquisition techniques, CT scan and 3D laser scan, were assessed. A total of 130 points were controlled and the deviations between the measured points of the physical and 3D virtual models were assessed. The results of the FEA study showed a relative difference of 20% for the maximum displacement and 10% for the maximum strain between the two geometries.
URI: http://hdl.handle.net/10773/6123
ISSN: 1025-5842
publisher version/DOI: http://dx.doi.org/10.1080/10255842.2010.493520
source: Computer Methods in Biomechanics and Biomedical Engineering
appears in collectionsMEC - Artigos

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