Creation of a three-dimensional model of the mandible and the TMJ in vivo by means of the finite element method.

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dc.citation.journalTitleInternational journal of computerized dentistryeng
dc.contributor.authorCastaño MC
dc.contributor.authorZapata U
dc.contributor.authorPedroza A
dc.contributor.authorJaramillo JD
dc.contributor.authorRoldán S
dc.contributor.departmentUniversidad EAFIT. Departamento de Ingeniería Mecánicaspa
dc.contributor.researchgroupBioingeniería GIB (CES – EAFIT)spa
dc.date.accessioned2021-04-12T18:59:05Z
dc.date.available2021-04-12T18:59:05Z
dc.date.issued2002-04-01
dc.description.abstractThe aim of this study was to develop a three-dimensional finite element model of the mandible, including its TMJ. The model consisted of 7942 nodes and 41,010 elements, which were obtained from a convergence test, done to minimize the result error. It included cancellous and cortical bone, periodontal ligament, masticatory muscles (masseters, temporalis, lateral and internal pterygoids), teeth and the articular disk. All characteristics such as dental, mandibular, and muscle geometry were obtained from a computerized tomography (CT) of a living person. CT sections were scanned and digitized with a CAD software program. After images were adequately assembled, a vertical tracing was done which allowed the definition of a three-dimensional mesh. Modeling of teeth was carried out independently and the periodontal ligament was later included, limiting the alveolar area. Muscles were modeled based on flat-scale photographs and total muscle force was distributed in multiple vectors. The articular disk was generated having 2 mm of thickness with the combination of spring-type (axial stiffness) and gap-type (contact) elements. The model was then analyzed with finite element method (FEM) software where a mesh was generated and values for Poisson's ratio, elasticity, and shear modulus were assigned. These were orthotropic for cancellous and cortical bone, and isotropic for dentin, periodontal ligament, articular disk, and temporal bone. The boundary conditions were defined restricting the nodes on the periphery of the temporal bone. It was therefore possible to generate a three-dimensional finite element model based on information obtained in vivo.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1531
dc.identifier.issn14634201
dc.identifier.otherSCOPUS;2-s2.0-0037645044
dc.identifier.otherPUBMED;12680039
dc.identifier.urihttp://hdl.handle.net/10784/28134
dc.language.isoeng
dc.publisherQuintessenz Verlags GmbH
dc.relationPUBMED;12680039
dc.relationSCOPUS;2-s2.0-0037645044
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0037645044&partnerID=40&md5=85a41dff9dcd05fcf8eba0ad62a2af81
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/1463-4201
dc.sourceInternational journal of computerized dentistry
dc.subjectadulteng
dc.subjectarticleeng
dc.subjectaudiovisual equipmenteng
dc.subjectcomputer assisted tomographyeng
dc.subjectdental careeng
dc.subjectfinite element analysiseng
dc.subjecthistologyeng
dc.subjecthumaneng
dc.subjectmaleeng
dc.subjectmandibleeng
dc.subjectmasticatory muscleeng
dc.subjectmethodologyeng
dc.subjectperiodontal ligamenteng
dc.subjecttemporomandibular jointeng
dc.subjectthree dimensional imagingeng
dc.subjecttootheng
dc.subjectAdulteng
dc.subjectDental Modelseng
dc.subjectFinite Element Analysiseng
dc.subjectHumanseng
dc.subjectImagingeng
dc.subjectThree-Dimensionaleng
dc.subjectMaleeng
dc.subjectMandibleeng
dc.subjectMasticatory Muscleseng
dc.subjectModelseng
dc.subjectAnatomiceng
dc.subjectPeriodontal Ligamenteng
dc.subjectTemporomandibular Jointeng
dc.subjectTomographyeng
dc.subjectX-Ray Computedeng
dc.subjectTootheng
dc.titleCreation of a three-dimensional model of the mandible and the TMJ in vivo by means of the finite element method.eng
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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