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The influence of data shape acquisition process and geometric accuracy of the mandible for numerical simulation.

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Title: The influence of data shape acquisition process and geometric accuracy of the mandible for numerical simulation.
Authors: Relvas, C.1 crelvas@ua.pt, Ramos, A.1, Completo, A.1, Simões, J. A.1
Source: Computer Methods in Biomechanics & Biomedical Engineering. Aug2011, Vol. 14 Issue 8, p721-728. 8p. 1 Color Photograph, 4 Diagrams, 1 Chart, 5 Graphs.
Subjects: Engineering mathematics software, Computer simulation, Finite element method, Mandible, Medical imaging systems, Three-dimensional imaging, Tomography, Human anatomy, Computer software
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. [ABSTRACT FROM AUTHOR]
Copyright of Computer Methods in Biomechanics & Biomedical Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
PubTypeId: academicJournal
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IllustrationInfo
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  Data: The influence of data shape acquisition process and geometric accuracy of the mandible for numerical simulation.
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  Data: <searchLink fieldCode="JN" term="%22Computer+Methods+in+Biomechanics+%26+Biomedical+Engineering%22">Computer Methods in Biomechanics & Biomedical Engineering</searchLink>. Aug2011, Vol. 14 Issue 8, p721-728. 8p. 1 Color Photograph, 4 Diagrams, 1 Chart, 5 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Engineering+mathematics+software%22">Engineering mathematics software</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Mandible%22">Mandible</searchLink><br /><searchLink fieldCode="DE" term="%22Medical+imaging+systems%22">Medical imaging systems</searchLink><br /><searchLink fieldCode="DE" term="%22Three-dimensional+imaging%22">Three-dimensional imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Tomography%22">Tomography</searchLink><br /><searchLink fieldCode="DE" term="%22Human+anatomy%22">Human anatomy</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+software%22">Computer software</searchLink>
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  Data: 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. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Computer Methods in Biomechanics & Biomedical Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1080/10255842.2010.493520
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      – Code: eng
        Text: English
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      – SubjectFull: Engineering mathematics software
        Type: general
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      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Mandible
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      – SubjectFull: Medical imaging systems
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      – SubjectFull: Three-dimensional imaging
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      – SubjectFull: Tomography
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      – SubjectFull: Computer software
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      – TitleFull: The influence of data shape acquisition process and geometric accuracy of the mandible for numerical simulation.
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            NameFull: Relvas, C.
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              Text: Aug2011
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