Bone stress and strain after use of a miniplate for molar protraction and uprighting: a 3-dimensional finite element analysis

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dc.contributor.authorLargura, Lucila Zimmermann
dc.contributor.authorArgenta, Marco AndrÉ
dc.contributor.authorSakima, Mauricio Tatsuei [UNESP]
dc.contributor.authorCamargo, Elisa Souza
dc.contributor.authorGuariza-filho, Odilon
dc.contributor.authorTanaka, Orlando Motohiro
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-08-06T16:12:11Z
dc.date.available2015-08-06T16:12:11Z
dc.date.issued2014
dc.description.abstractThe aim of this study was to use the finite element method to evaluate the distribution of stresses and strains on the local bone tissue adjacent to the miniplate used for anchorage of orthodontic forces. Methods: A 3-dimensional model composed of a hemimandible and teeth was constructed using dental computed tomographic images, in which we assembled a miniplate with fixation screws. The uprighting and mesial movements of the mandibular second molar that was anchored with the miniplate were simulated. The miniplate was loaded with horizontal forces of 2, 5, and 15 N. A moment of 11.77 N.mm was also applied. The stress and strain distributions were analyzed, and their correlations with the bone remodeling criteria and miniplate stability were assessed. Results: When orthodontic loads were applied, peak bone strain remained within the range of bone homeostasis (100-1500 mu m strain) with a balance between bone formation and resorption. The maximum deformation was found to be 1035 mu m strain with a force of 5 N. At a force of 15 N, bone resorption was observed in the region of the screws. Conclusions: We observed more stress concentration around the screws than in the cancellous bone. The levels of stress and strain increased when the force was increased but remained within physiologic levels. The anchorage system of miniplate and screws could withstand the orthodontic forces, which did not affect the stability of the miniplate.en
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Clínica Infantil, Faculdade de Odontologia de Araraquara, Araraquara, Rua Humaitá, 1680, Centro, CEP 14801-903, SP, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Clínica Infantil, Faculdade de Odontologia de Araraquara, Araraquara, Rua Humaitá, 1680, Centro, CEP 14801-903, SP, Brasil
dc.format.extent198-206
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S0889540614004764
dc.identifier.citationAmerican Journal of Orthodontics and Dentofacial Orthopedics, v. 146, n. 2, p. 198-206, 2014.
dc.identifier.doi10.1016/j.ajodo.2014.04.022
dc.identifier.issn0889-5406
dc.identifier.lattes5535964583779486
dc.identifier.urihttp://hdl.handle.net/11449/125477
dc.language.isoeng
dc.relation.ispartofAmerican Journal of Orthodontics and Dentofacial Orthopedics
dc.relation.ispartofjcr1.842
dc.relation.ispartofsjr1,289
dc.rights.accessRightsAcesso restrito
dc.sourceCurrículo Lattes
dc.subjectOrthodontic mini-implantsen
dc.subjectSkeletal anchorage systemen
dc.subjectCortical boneen
dc.subjectHistological-evaluationen
dc.subjectMiniscrew implantsen
dc.subjectSurrounding boneen
dc.subjectThicknessen
dc.subjectDogsen
dc.subjectPlacementen
dc.subjectStabilityen
dc.subjectAncoragem esqueléticapt
dc.subjectMiniplacapt
dc.subjectMétodo do elemento finitopt
dc.subjectBiomecânicapt
dc.titleBone stress and strain after use of a miniplate for molar protraction and uprighting: a 3-dimensional finite element analysisen
dc.typeArtigo
unesp.author.lattes5535964583779486
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt
unesp.departmentOdontologiapt

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