Histological evaluation of the effects of corticotomy on induced orthodontic movement in rats
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1807-2577.10417 http://hdl.handle.net/11449/157855 |
Resumo: | Abstract: Introduction: Alveolar corticotomy is a surgical procedure used to increase the velocity of tooth movement.Objective Identify histological evidence of the effect of corticotomy on orthodontic movement in rats.Material and method Forty-five Wistar rats (Rattusnorvegicus Albinus) were equally divided into three groups: Control Group (CG) - no tooth movement or corticotomy; Movement Group (MG) - tooth orthodontic movement only; and Corticotomy and Movement Group (CMG) - tooth orthodontic movement surgically assisted by corticotomy. In the CMG, surgical procedures consisted in an incision in the palatal, reaching from the mesial to the distal regions of the maxillary right first molar. Tooth movement in the MG and CMG was applied with coil spring force of 40 gF from the maxillary right first molar to the maxillary right incisor. The rats were sacrificed at days 1, 3, and 7, and histological sections were performed to evaluate the counting of osteoblasts and osteoclasts throughout the areas of tension and pressure.Result Histological analysis showed that the CMG presented better cell response to bone neoformation compared with that of the other groups. Greater proliferation of osteoclasts was observed in areas of pressure on day 3, resulting in increased reabsorption, whereas greater proliferation of osteoblasts was observed in areas of tension on day 1, indicating increased bone formation.Conclusion Differences between the treated groups occurred only in the initial period of tooth movement. Therefore, the changes caused by corticotomy are not significant in orthodontic movement to justify this invasive procedure. |
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Histological evaluation of the effects of corticotomy on induced orthodontic movement in ratsAvaliação histológica dos efeitos da corticotomia no movimento ortodôntico induzido em ratosTooth movement techniquesosteoclastsosteoblastsratsorthodonticsTécnicas de movimentação dentáriaosteoclastososteoblastosratosortodontiaAbstract: Introduction: Alveolar corticotomy is a surgical procedure used to increase the velocity of tooth movement.Objective Identify histological evidence of the effect of corticotomy on orthodontic movement in rats.Material and method Forty-five Wistar rats (Rattusnorvegicus Albinus) were equally divided into three groups: Control Group (CG) - no tooth movement or corticotomy; Movement Group (MG) - tooth orthodontic movement only; and Corticotomy and Movement Group (CMG) - tooth orthodontic movement surgically assisted by corticotomy. In the CMG, surgical procedures consisted in an incision in the palatal, reaching from the mesial to the distal regions of the maxillary right first molar. Tooth movement in the MG and CMG was applied with coil spring force of 40 gF from the maxillary right first molar to the maxillary right incisor. The rats were sacrificed at days 1, 3, and 7, and histological sections were performed to evaluate the counting of osteoblasts and osteoclasts throughout the areas of tension and pressure.Result Histological analysis showed that the CMG presented better cell response to bone neoformation compared with that of the other groups. Greater proliferation of osteoclasts was observed in areas of pressure on day 3, resulting in increased reabsorption, whereas greater proliferation of osteoblasts was observed in areas of tension on day 1, indicating increased bone formation.Conclusion Differences between the treated groups occurred only in the initial period of tooth movement. Therefore, the changes caused by corticotomy are not significant in orthodontic movement to justify this invasive procedure.Resumo: Introdução: A corticotomia alveolar é um procedimento cirúrgico utilizado para aumentar a velocidade do movimento dentário.Objetivo Identificar evidências histológicas do efeito da corticotomia no movimento ortodôntico no rato.Material e método Quarenta e cinco ratos Wistar (Rattusnorvegicus Albinus) foram igualmente divididos em três grupos: Grupo de Controle (GC) - sem movimento dentário ou corticotomia; Grupo de movimento (GM) – apenas movimento ortodôntico do dente; e Corticotomia e Movimento Grupo (GCM) - movimento ortodôntico dentário cirurgicamente assistido por corticotomia. Os procedimentos cirúrgicos de GCM consistiram de uma incisão no palato, da mesial a distal do primeiro molar superior direito. O movimento do dente no GM e GCM foi aplicado com uma força da mola helicoidal de 40 gF do primeiro molar superior direito para o incisivo superior direito. Os ratos foram sacrificados no 1º, 3º e 7º dia e, após este período, foram realizadas seções histológicas para avaliar a contagem de osteoblastos e osteoclastos nas áreas de tensão e pressão.Resultado A análise histológica mostrou que o GCM apresentou melhor resposta celular na neoformação óssea quando comparado aos outros grupos. Em áreas de pressão, no 3º dia, houve uma maior proliferação de osteoclastos, resultando em maior reabsorção. Em áreas de tensão, no 1º dia, houve uma maior proliferação de osteoblastos, indicando aumento da formação óssea.Conclusão A diferença entre os grupos tratados ocorreu apenas no período inicial do movimento. Portanto, as alterações causadas pela corticotomia não são significativas no movimento ortodôntico para justificar o procedimento invasivo.Universidade Estadual Paulista Faculdade de Odontologia de AraraquaraUniversidade Estadual Paulista Faculdade de Odontologia de AraraquaraUniversidade Estadual Paulista Júlio de Mesquita FilhoUniversidade Estadual Paulista (Unesp)Schneider, Patrícia PigatoSilva, Lais PavanCarvalho, Fernando José Lopes De CamposLon, Luís Filipe SiuGandini JÚnior, Luiz Gonzaga2018-11-12T17:27:14Z2018-11-12T17:27:14Z2017-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article368-373application/pdfhttp://dx.doi.org/10.1590/1807-2577.10417Revista de Odontologia da UNESP. Universidade Estadual Paulista Júlio de Mesquita Filho, v. 46, n. 6, p. 368-373, 2017.1807-2577http://hdl.handle.net/11449/15785510.1590/1807-2577.10417S1807-25772017000600368S1807-25772017000600368.pdf6493049604923160SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista de Odontologia da UNESPinfo:eu-repo/semantics/openAccess2023-10-07T06:09:30Zoai:repositorio.unesp.br:11449/157855Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-07T06:09:30Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Histological evaluation of the effects of corticotomy on induced orthodontic movement in rats Avaliação histológica dos efeitos da corticotomia no movimento ortodôntico induzido em ratos |
title |
Histological evaluation of the effects of corticotomy on induced orthodontic movement in rats |
spellingShingle |
Histological evaluation of the effects of corticotomy on induced orthodontic movement in rats Schneider, Patrícia Pigato Tooth movement techniques osteoclasts osteoblasts rats orthodontics Técnicas de movimentação dentária osteoclastos osteoblastos ratos ortodontia |
title_short |
Histological evaluation of the effects of corticotomy on induced orthodontic movement in rats |
title_full |
Histological evaluation of the effects of corticotomy on induced orthodontic movement in rats |
title_fullStr |
Histological evaluation of the effects of corticotomy on induced orthodontic movement in rats |
title_full_unstemmed |
Histological evaluation of the effects of corticotomy on induced orthodontic movement in rats |
title_sort |
Histological evaluation of the effects of corticotomy on induced orthodontic movement in rats |
author |
Schneider, Patrícia Pigato |
author_facet |
Schneider, Patrícia Pigato Silva, Lais Pavan Carvalho, Fernando José Lopes De Campos Lon, Luís Filipe Siu Gandini JÚnior, Luiz Gonzaga |
author_role |
author |
author2 |
Silva, Lais Pavan Carvalho, Fernando José Lopes De Campos Lon, Luís Filipe Siu Gandini JÚnior, Luiz Gonzaga |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Schneider, Patrícia Pigato Silva, Lais Pavan Carvalho, Fernando José Lopes De Campos Lon, Luís Filipe Siu Gandini JÚnior, Luiz Gonzaga |
dc.subject.por.fl_str_mv |
Tooth movement techniques osteoclasts osteoblasts rats orthodontics Técnicas de movimentação dentária osteoclastos osteoblastos ratos ortodontia |
topic |
Tooth movement techniques osteoclasts osteoblasts rats orthodontics Técnicas de movimentação dentária osteoclastos osteoblastos ratos ortodontia |
description |
Abstract: Introduction: Alveolar corticotomy is a surgical procedure used to increase the velocity of tooth movement.Objective Identify histological evidence of the effect of corticotomy on orthodontic movement in rats.Material and method Forty-five Wistar rats (Rattusnorvegicus Albinus) were equally divided into three groups: Control Group (CG) - no tooth movement or corticotomy; Movement Group (MG) - tooth orthodontic movement only; and Corticotomy and Movement Group (CMG) - tooth orthodontic movement surgically assisted by corticotomy. In the CMG, surgical procedures consisted in an incision in the palatal, reaching from the mesial to the distal regions of the maxillary right first molar. Tooth movement in the MG and CMG was applied with coil spring force of 40 gF from the maxillary right first molar to the maxillary right incisor. The rats were sacrificed at days 1, 3, and 7, and histological sections were performed to evaluate the counting of osteoblasts and osteoclasts throughout the areas of tension and pressure.Result Histological analysis showed that the CMG presented better cell response to bone neoformation compared with that of the other groups. Greater proliferation of osteoclasts was observed in areas of pressure on day 3, resulting in increased reabsorption, whereas greater proliferation of osteoblasts was observed in areas of tension on day 1, indicating increased bone formation.Conclusion Differences between the treated groups occurred only in the initial period of tooth movement. Therefore, the changes caused by corticotomy are not significant in orthodontic movement to justify this invasive procedure. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-01 2018-11-12T17:27:14Z 2018-11-12T17:27:14Z |
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/10.1590/1807-2577.10417 Revista de Odontologia da UNESP. Universidade Estadual Paulista Júlio de Mesquita Filho, v. 46, n. 6, p. 368-373, 2017. 1807-2577 http://hdl.handle.net/11449/157855 10.1590/1807-2577.10417 S1807-25772017000600368 S1807-25772017000600368.pdf 6493049604923160 |
url |
http://dx.doi.org/10.1590/1807-2577.10417 http://hdl.handle.net/11449/157855 |
identifier_str_mv |
Revista de Odontologia da UNESP. Universidade Estadual Paulista Júlio de Mesquita Filho, v. 46, n. 6, p. 368-373, 2017. 1807-2577 10.1590/1807-2577.10417 S1807-25772017000600368 S1807-25772017000600368.pdf 6493049604923160 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista de Odontologia da UNESP |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
368-373 application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual Paulista Júlio de Mesquita Filho |
publisher.none.fl_str_mv |
Universidade Estadual Paulista Júlio de Mesquita Filho |
dc.source.none.fl_str_mv |
SciELO 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 |
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1799964474208157696 |