A new way of evaluating the biomechanics of the mandible with freedom in three axes in space: Technical note
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.ajoms.2018.03.011 http://hdl.handle.net/11449/160562 |
Resumo: | Objective: A biomechanical analysis of fixation devices to repair fractures or osteotomies of the mandible is carried out in hemi-mandibles fixed in the condylar process, the force is applied in the molar region and a single movement is allowed. This technical note presents a new setup for evaluating the biomechanics of the mandible with the following improvements: (1) providing freedom of mobility in three axes in the space; (2) applying forces in a way that closely replicates that of real cases; (3) capable of evaluating the fracture resistance and the stiffness and elastic recovery. Method: A rigid metal support mounted on bearings was developed that allowed the movement and deformation of the mandible during load application to mimic its freedom of movement when in function. Steadying was only in the mandibular fossae and free in all other regions. Ten fresh sheep mandibles were subjected to testing of their rigidity and capacity for elastic recovery after a displacement of 0.75 mm. Results: After three displacement cycles, the mean value of stiffness was 506 +/- 64 N/mm, and the mandibles showed visco-elastic recovery. Conclusion: This new apparatus and approach is promising for use in the evaluation of mandibular fixations. |
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Repositório Institucional da UNESP |
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A new way of evaluating the biomechanics of the mandible with freedom in three axes in space: Technical noteMandibleIn vitro techniquesApparatus and instrumentsElasticityObjective: A biomechanical analysis of fixation devices to repair fractures or osteotomies of the mandible is carried out in hemi-mandibles fixed in the condylar process, the force is applied in the molar region and a single movement is allowed. This technical note presents a new setup for evaluating the biomechanics of the mandible with the following improvements: (1) providing freedom of mobility in three axes in the space; (2) applying forces in a way that closely replicates that of real cases; (3) capable of evaluating the fracture resistance and the stiffness and elastic recovery. Method: A rigid metal support mounted on bearings was developed that allowed the movement and deformation of the mandible during load application to mimic its freedom of movement when in function. Steadying was only in the mandibular fossae and free in all other regions. Ten fresh sheep mandibles were subjected to testing of their rigidity and capacity for elastic recovery after a displacement of 0.75 mm. Results: After three displacement cycles, the mean value of stiffness was 506 +/- 64 N/mm, and the mandibles showed visco-elastic recovery. Conclusion: This new apparatus and approach is promising for use in the evaluation of mandibular fixations.Univ Sao Paulo, Sch Dent, Dept Biomat & Oral Biol, Sao Paulo, SP, BrazilUniv Sao Paulo, Sch Dent, Dept Oral & Maxillofacial Surg, Av Prof Lineu Prestes 2227, BR-05508900 Sao Paulo, BrazilUniv Estadual Paulista, Grad Program, Aracatuba Dent Sch, Sao Paulo, SP, BrazilUniv Estadual Paulista, Grad Program, Aracatuba Dent Sch, Sao Paulo, SP, BrazilElsevier B.V.Universidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Meira, Josete Barbosa C.Landgraf, HigorShinohara, Elio Hitoshi [UNESP]Luz, Joao Gualberto C.Ballester, Rafael Yague2018-11-26T16:05:01Z2018-11-26T16:05:01Z2018-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article405-408application/pdfhttp://dx.doi.org/10.1016/j.ajoms.2018.03.011Journal Of Oral And Maxillofacial Surgery Medicine And Pathology. New York: Elsevier Science Inc, v. 30, n. 5, p. 405-408, 2018.2212-5558http://hdl.handle.net/11449/16056210.1016/j.ajoms.2018.03.011WOS:000443741400002WOS000443741400002.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Oral And Maxillofacial Surgery Medicine And Pathology0,153info:eu-repo/semantics/openAccess2023-10-04T06:04:00Zoai:repositorio.unesp.br:11449/160562Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-05-23T11:27:07.761834Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A new way of evaluating the biomechanics of the mandible with freedom in three axes in space: Technical note |
title |
A new way of evaluating the biomechanics of the mandible with freedom in three axes in space: Technical note |
spellingShingle |
A new way of evaluating the biomechanics of the mandible with freedom in three axes in space: Technical note Meira, Josete Barbosa C. Mandible In vitro techniques Apparatus and instruments Elasticity |
title_short |
A new way of evaluating the biomechanics of the mandible with freedom in three axes in space: Technical note |
title_full |
A new way of evaluating the biomechanics of the mandible with freedom in three axes in space: Technical note |
title_fullStr |
A new way of evaluating the biomechanics of the mandible with freedom in three axes in space: Technical note |
title_full_unstemmed |
A new way of evaluating the biomechanics of the mandible with freedom in three axes in space: Technical note |
title_sort |
A new way of evaluating the biomechanics of the mandible with freedom in three axes in space: Technical note |
author |
Meira, Josete Barbosa C. |
author_facet |
Meira, Josete Barbosa C. Landgraf, Higor Shinohara, Elio Hitoshi [UNESP] Luz, Joao Gualberto C. Ballester, Rafael Yague |
author_role |
author |
author2 |
Landgraf, Higor Shinohara, Elio Hitoshi [UNESP] Luz, Joao Gualberto C. Ballester, Rafael Yague |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Meira, Josete Barbosa C. Landgraf, Higor Shinohara, Elio Hitoshi [UNESP] Luz, Joao Gualberto C. Ballester, Rafael Yague |
dc.subject.por.fl_str_mv |
Mandible In vitro techniques Apparatus and instruments Elasticity |
topic |
Mandible In vitro techniques Apparatus and instruments Elasticity |
description |
Objective: A biomechanical analysis of fixation devices to repair fractures or osteotomies of the mandible is carried out in hemi-mandibles fixed in the condylar process, the force is applied in the molar region and a single movement is allowed. This technical note presents a new setup for evaluating the biomechanics of the mandible with the following improvements: (1) providing freedom of mobility in three axes in the space; (2) applying forces in a way that closely replicates that of real cases; (3) capable of evaluating the fracture resistance and the stiffness and elastic recovery. Method: A rigid metal support mounted on bearings was developed that allowed the movement and deformation of the mandible during load application to mimic its freedom of movement when in function. Steadying was only in the mandibular fossae and free in all other regions. Ten fresh sheep mandibles were subjected to testing of their rigidity and capacity for elastic recovery after a displacement of 0.75 mm. Results: After three displacement cycles, the mean value of stiffness was 506 +/- 64 N/mm, and the mandibles showed visco-elastic recovery. Conclusion: This new apparatus and approach is promising for use in the evaluation of mandibular fixations. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-26T16:05:01Z 2018-11-26T16:05:01Z 2018-09-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.ajoms.2018.03.011 Journal Of Oral And Maxillofacial Surgery Medicine And Pathology. New York: Elsevier Science Inc, v. 30, n. 5, p. 405-408, 2018. 2212-5558 http://hdl.handle.net/11449/160562 10.1016/j.ajoms.2018.03.011 WOS:000443741400002 WOS000443741400002.pdf |
url |
http://dx.doi.org/10.1016/j.ajoms.2018.03.011 http://hdl.handle.net/11449/160562 |
identifier_str_mv |
Journal Of Oral And Maxillofacial Surgery Medicine And Pathology. New York: Elsevier Science Inc, v. 30, n. 5, p. 405-408, 2018. 2212-5558 10.1016/j.ajoms.2018.03.011 WOS:000443741400002 WOS000443741400002.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal Of Oral And Maxillofacial Surgery Medicine And Pathology 0,153 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
405-408 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803045825500151808 |