Resistance and Stress Finite Element Analysis of Different Types of Fixation for Mandibular Orthognathic Surgery
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Journal |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402016000300284 |
Resumo: | Abstract The aim of this study was to evaluate the stress and dislodgement resistance by finite element analysis of different types of fixation in mandibular orthognathic surgery. A 3D solid finite element model of a hemi-mandible was obtained. A bilateral sagittal split osteotomy was simulated and the distal segment was advanced 5 mm forward. After the adjustment and superimposing of segments, 9 different types of osteosynthesis with 2.0 miniplates and screws were simulated: A, one 4-hole conventional straight miniplate; B, one 4-hole locking straight miniplate; C, one 4-hole conventional miniplate and one bicortical screw; D, one 4-hole locking miniplate and 1 bicortical screws; E, one 6-hole conventional straight miniplate; F, one 6-hole locking miniplate; G, two 4-hole conventional straight miniplates; H, two 4-hole locking straight miniplates; and I, 3 bicortical screws in an inverted-L pattern. In each model, forces simulating the masticatory muscles were applied. The values of stress in the plates and screws were checked. The dislodgement resistance was checked at the proximal segment since the distal segment was stable because of the screen at the occlusal tooth. The regions with the lowest and highest displacement were measured. The offset between the osteotomized segments was verified by millimeter intervals. Inverted-L with bicortical screws was the model that had the lowest dislodgment and the model with the lowest tension was the one with two conventional plates. The results suggest that the tension was better distributed in the locking miniplates, but the locking screws presented higher concentration of tension. |
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Brazilian Dental Journal |
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Resistance and Stress Finite Element Analysis of Different Types of Fixation for Mandibular Orthognathic Surgeryorthognathic surgerymandibularfixationresistancestress.Abstract The aim of this study was to evaluate the stress and dislodgement resistance by finite element analysis of different types of fixation in mandibular orthognathic surgery. A 3D solid finite element model of a hemi-mandible was obtained. A bilateral sagittal split osteotomy was simulated and the distal segment was advanced 5 mm forward. After the adjustment and superimposing of segments, 9 different types of osteosynthesis with 2.0 miniplates and screws were simulated: A, one 4-hole conventional straight miniplate; B, one 4-hole locking straight miniplate; C, one 4-hole conventional miniplate and one bicortical screw; D, one 4-hole locking miniplate and 1 bicortical screws; E, one 6-hole conventional straight miniplate; F, one 6-hole locking miniplate; G, two 4-hole conventional straight miniplates; H, two 4-hole locking straight miniplates; and I, 3 bicortical screws in an inverted-L pattern. In each model, forces simulating the masticatory muscles were applied. The values of stress in the plates and screws were checked. The dislodgement resistance was checked at the proximal segment since the distal segment was stable because of the screen at the occlusal tooth. The regions with the lowest and highest displacement were measured. The offset between the osteotomized segments was verified by millimeter intervals. Inverted-L with bicortical screws was the model that had the lowest dislodgment and the model with the lowest tension was the one with two conventional plates. The results suggest that the tension was better distributed in the locking miniplates, but the locking screws presented higher concentration of tension.Fundação Odontológica de Ribeirão Preto2016-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402016000300284Brazilian Dental Journal v.27 n.3 2016reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/0103-6440201600336info:eu-repo/semantics/openAccessStringhini,Diego JoséSommerfeld,RicardoUetanabaro,Lucas CaetanoLeonardi,Denise PiottoAraújo,Melissa RodriguesRebellato,Nelson Luís BarbosaCosta,Delson João daScariot,Rafaelaeng2016-05-18T00:00:00Zoai:scielo:S0103-64402016000300284Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2016-05-18T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false |
dc.title.none.fl_str_mv |
Resistance and Stress Finite Element Analysis of Different Types of Fixation for Mandibular Orthognathic Surgery |
title |
Resistance and Stress Finite Element Analysis of Different Types of Fixation for Mandibular Orthognathic Surgery |
spellingShingle |
Resistance and Stress Finite Element Analysis of Different Types of Fixation for Mandibular Orthognathic Surgery Stringhini,Diego José orthognathic surgery mandibular fixation resistance stress. |
title_short |
Resistance and Stress Finite Element Analysis of Different Types of Fixation for Mandibular Orthognathic Surgery |
title_full |
Resistance and Stress Finite Element Analysis of Different Types of Fixation for Mandibular Orthognathic Surgery |
title_fullStr |
Resistance and Stress Finite Element Analysis of Different Types of Fixation for Mandibular Orthognathic Surgery |
title_full_unstemmed |
Resistance and Stress Finite Element Analysis of Different Types of Fixation for Mandibular Orthognathic Surgery |
title_sort |
Resistance and Stress Finite Element Analysis of Different Types of Fixation for Mandibular Orthognathic Surgery |
author |
Stringhini,Diego José |
author_facet |
Stringhini,Diego José Sommerfeld,Ricardo Uetanabaro,Lucas Caetano Leonardi,Denise Piotto Araújo,Melissa Rodrigues Rebellato,Nelson Luís Barbosa Costa,Delson João da Scariot,Rafaela |
author_role |
author |
author2 |
Sommerfeld,Ricardo Uetanabaro,Lucas Caetano Leonardi,Denise Piotto Araújo,Melissa Rodrigues Rebellato,Nelson Luís Barbosa Costa,Delson João da Scariot,Rafaela |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Stringhini,Diego José Sommerfeld,Ricardo Uetanabaro,Lucas Caetano Leonardi,Denise Piotto Araújo,Melissa Rodrigues Rebellato,Nelson Luís Barbosa Costa,Delson João da Scariot,Rafaela |
dc.subject.por.fl_str_mv |
orthognathic surgery mandibular fixation resistance stress. |
topic |
orthognathic surgery mandibular fixation resistance stress. |
description |
Abstract The aim of this study was to evaluate the stress and dislodgement resistance by finite element analysis of different types of fixation in mandibular orthognathic surgery. A 3D solid finite element model of a hemi-mandible was obtained. A bilateral sagittal split osteotomy was simulated and the distal segment was advanced 5 mm forward. After the adjustment and superimposing of segments, 9 different types of osteosynthesis with 2.0 miniplates and screws were simulated: A, one 4-hole conventional straight miniplate; B, one 4-hole locking straight miniplate; C, one 4-hole conventional miniplate and one bicortical screw; D, one 4-hole locking miniplate and 1 bicortical screws; E, one 6-hole conventional straight miniplate; F, one 6-hole locking miniplate; G, two 4-hole conventional straight miniplates; H, two 4-hole locking straight miniplates; and I, 3 bicortical screws in an inverted-L pattern. In each model, forces simulating the masticatory muscles were applied. The values of stress in the plates and screws were checked. The dislodgement resistance was checked at the proximal segment since the distal segment was stable because of the screen at the occlusal tooth. The regions with the lowest and highest displacement were measured. The offset between the osteotomized segments was verified by millimeter intervals. Inverted-L with bicortical screws was the model that had the lowest dislodgment and the model with the lowest tension was the one with two conventional plates. The results suggest that the tension was better distributed in the locking miniplates, but the locking screws presented higher concentration of tension. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402016000300284 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402016000300284 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-6440201600336 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Fundação Odontológica de Ribeirão Preto |
publisher.none.fl_str_mv |
Fundação Odontológica de Ribeirão Preto |
dc.source.none.fl_str_mv |
Brazilian Dental Journal v.27 n.3 2016 reponame:Brazilian Dental Journal instname:Fundação Odontológica de Ribeirão Preto (FUNORP) instacron:FUNORP |
instname_str |
Fundação Odontológica de Ribeirão Preto (FUNORP) |
instacron_str |
FUNORP |
institution |
FUNORP |
reponame_str |
Brazilian Dental Journal |
collection |
Brazilian Dental Journal |
repository.name.fl_str_mv |
Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP) |
repository.mail.fl_str_mv |
bdj@forp.usp.br||sergio@fosjc.unesp.br |
_version_ |
1754204094040375296 |