Comparison Of Five Different Fixation Techniques Of Sagittal Split Ramus Osteotomy Using Three-dimensional Finite Elements Analysis.

dc.creatorSato, F R L
dc.creatorAsprino, L
dc.creatorNoritomi, P Y
dc.creatorda Silva, J V L
dc.creatorde Moraes, M
dc.date2012-Aug
dc.date2015-11-27T13:28:25Z
dc.date2015-11-27T13:28:25Z
dc.date.accessioned2018-03-29T01:15:11Z
dc.date.available2018-03-29T01:15:11Z
dc.identifierInternational Journal Of Oral And Maxillofacial Surgery. v. 41, n. 8, p. 934-41, 2012-Aug.
dc.identifier1399-0020
dc.identifier10.1016/j.ijom.2012.03.018
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/22510341
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/199964
dc.identifier22510341
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1300197
dc.descriptionThe aim of this study was to compare the mechanical stress over hemimandible substrate and hardware after sagittal split ramus osteotomy (SSRO) fixed with five different techniques using three-dimensional (3D) finite element analysis. A 3D finite element model of a hemimandible was created and a 5mm advancement SSRO was simulated on a computer model. The model was fixed with five different techniques: 3 linear 60° screw arrangement; 3 linear 90° screw arrangement; 3 inverted L screw arrangement; 1 conventional miniplate; and 1 locking miniplate with four monocortical screws. Load was applied until 3mm displacement was reached and the results were compared with previous mechanical and photoelastic tests, thus analysing the mechanical stresses developed in the proximity of miniplates and screws and within the fixation system itself. The maximum principal stress values demonstrate a lower mechanical stress rate in bone and in the fixation system with the inverted L arrangement, followed by the linear 90° and linear 60° arrangements. The locking miniplate/screw system presented lower maximum principal stress and better stress distribution compared with the conventional system. Under the conditions tested, the reversed L arrangement provided the most favourable stress dissipation behaviour.
dc.description41
dc.description934-41
dc.languageeng
dc.relationInternational Journal Of Oral And Maxillofacial Surgery
dc.relationInt J Oral Maxillofac Surg
dc.rightsfechado
dc.rightsCrown Copyright © 2012. Published by Elsevier Ltd. All rights reserved.
dc.sourcePubMed
dc.subjectAlloys
dc.subjectBiocompatible Materials
dc.subjectBiomechanical Phenomena
dc.subjectBone Plates
dc.subjectBone Screws
dc.subjectComputer Simulation
dc.subjectElastic Modulus
dc.subjectFinite Element Analysis
dc.subjectHumans
dc.subjectImaging, Three-dimensional
dc.subjectMandible
dc.subjectMandibular Advancement
dc.subjectMiniaturization
dc.subjectModels, Anatomic
dc.subjectModels, Biological
dc.subjectOrthognathic Surgical Procedures
dc.subjectOsteotomy, Sagittal Split Ramus
dc.subjectPolyurethanes
dc.subjectStress, Mechanical
dc.subjectTitanium
dc.titleComparison Of Five Different Fixation Techniques Of Sagittal Split Ramus Osteotomy Using Three-dimensional Finite Elements Analysis.
dc.typeArtículos de revistas


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