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dc.contributor.authorBezerra, Tácio Pinheiro-
dc.contributor.authorSilva Junior, Francisco Ilson da-
dc.contributor.authorScarparo, H. C.-
dc.contributor.authorCosta, Fábio Wildson Gurgel-
dc.contributor.authorSoares, Eduardo Costa Studart-
dc.identifier.citationBEZERRA, T. P. et al. Do erupted third molars weaken the mandibular angle after trauma to the chin region? a 3D finite element study. International Journal of Oral and Maxillofacial Surgery, Copenhagen, DK, v. 42, n. 4, p. 474-480, abr. 2013.pt_BR
dc.description.abstractIt has been suggested that third molars increase mandibular fragility because they do not contribute to its strength. For ethical reasons, a human study design that would permit the elucidation of this interference is not possible. This study evaluated the impact of the presence of erupted third molars on the mandibular angle of resistance when submitted to trauma. A three-dimensional (3D) mandibular model was obtained through finite element methodology using computed tomography (CT) with the geometry and mechanical properties to reproduce a normal mandibular structure. Human mandibles with no, one or two erupted third molars were evaluated. Whenever the third molar was present there was a greater concentration of tensions around the cervical part of its alveolus. Approximated Von Mises equivalent stress of the third molar region was 107.035 MPa in the mandible with teeth and 64.6948 MPa in the mandible without teeth. In the condylar region it was 151.65 MPa when the third molar was present and 184.496 MPa when it was absent. The digital models created proved that the mandibular angle becomes more fragile in the presence of third molars. When they are absent the energy concentrates on the lateral e posterior aspect of the condylar neck.pt_BR
dc.publisherInternational Journal of Oral and Maxillofacial Surgerypt_BR
dc.subjectAnálise de Elementos Finitospt_BR
dc.subjectDente Serotinopt_BR
dc.titleDo erupted third molars weaken the mandibular angle after trauma to the chin region? a 3D finite element studypt_BR
dc.typeArtigo de Periódicopt_BR
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