Three-dimensional dental arch changes of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusion

Detalhes bibliográficos
Autor(a) principal: Peixoto, Adriano Porto [UNESP]
Data de Publicação: 2014
Outros Autores: Pinto, Ary Dos Santos [UNESP], Garib, Daniela Gamba, Gonçalves, João Roberto [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/2176-9451.19.4.071-079.oar
http://hdl.handle.net/11449/126204
Resumo: INTRODUCTION:This study assessed the three-dimensional changes in the dental arch of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusions at three different periods.METHODS:Landmarks previously identified on upper and lower dental casts were digitized on a three-dimensional digitizer MicroScribe-3DX and stored in Excel worksheets in order to assess the width, length and depth of patient's dental arches.RESULTS:During orthodontic preparation, the maxillary and mandibular transverse dimensions measured at the premolar regions were increased and maintained throughout the follow-up period. Intercanine width was increased only in the upper arch during orthodontic preparation. Maxillary arch length was reduced during orthodontic finalization, only. Upper and lower arch depths were stable in the study periods. Differences between centroid and gingival changes suggested that upper and lower arch premolars buccaly proclined during the pre-surgical period.CONCLUSIONS:Maxillary and mandibular dental arches presented transverse expansion at premolar regions during preoperative orthodontic preparation, with a tendency towards buccal tipping. The transverse dimensions were not altered after surgery. No sagittal or vertical changes were observed during the follow-up periods.
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spelling Three-dimensional dental arch changes of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusionOrthodonticsOrthognathic surgeryMalocclusionDental modelsOrtodontiaCirurgia ortognáticaMá oclusãoModelos dentáriosINTRODUCTION:This study assessed the three-dimensional changes in the dental arch of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusions at three different periods.METHODS:Landmarks previously identified on upper and lower dental casts were digitized on a three-dimensional digitizer MicroScribe-3DX and stored in Excel worksheets in order to assess the width, length and depth of patient's dental arches.RESULTS:During orthodontic preparation, the maxillary and mandibular transverse dimensions measured at the premolar regions were increased and maintained throughout the follow-up period. Intercanine width was increased only in the upper arch during orthodontic preparation. Maxillary arch length was reduced during orthodontic finalization, only. Upper and lower arch depths were stable in the study periods. Differences between centroid and gingival changes suggested that upper and lower arch premolars buccaly proclined during the pre-surgical period.CONCLUSIONS:Maxillary and mandibular dental arches presented transverse expansion at premolar regions during preoperative orthodontic preparation, with a tendency towards buccal tipping. The transverse dimensions were not altered after surgery. No sagittal or vertical changes were observed during the follow-up periods.Introdução: esse estudo avaliou as alterações tridimensionais ocorridas na morfologia das arcadas dentárias de pacientes submetidos ao tratamento ortodôntico-cirúrgico para a correção da má oclusão de Classe II, em três períodos distintos: (T1 ) modelos iniciais, (T2 ) modelos pré-cirúrgicos imediatos (de 1 a 15 dias antes da cirurgia) e (T3 ) modelos pós-cirúrgicos (mínimo de 6 meses após a remoção do aparelho ortodôntico). Métodos: pontos previamente demarcados em cada modelo foram digitalizados por meio do digitalizador tridimensional MicroScribe-3DX, cujas coordenadas, armazenadas em planilhas do programa Excel, deram origem a valores que possibilitaram a avaliação da largura, comprimento e profundidade das arcadas dentárias. Resultados: durante o preparo ortodôntico, houve aumentos nas distâncias transversais superiores e inferiores medidas na região de pré-molares que se mantiveram no período total de acompanhamento. Apenas a distância intercaninos superior apresentou alterações de aumento durante o preparo ortodôntico, assim como a largura da arcada superior, que diminuiu durante a fase de finalização. A profundidade de ambas as arcadas manteve-se estável nas fases avaliadas. Diferenças entre as mudanças dos pontos centroide e gengival sugerem que os pré-molares superiores e inferiores inclinaram para vestibular durante o preparo ortodôntico pré-cirúrgico. Conclusões: conclui-se que as arcadas dentárias superiores e inferiores sofreram expansão transversal na região de pré-molares durante o preparo ortodôntico pré-cirúrgico, com tendência à inclinação vestibular de todos os dentes posteriores. Após a cirurgia, as dimensões transversais não foram afetadas. Não foram observadas alterações sagitais ou verticais durante os períodos de observação.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)State University of São Paulo School of DentistryState University of São Paulo School of Dentistry Department of OrthodonticsUniversity of São Paulo School of Dentistry Hospital of Rehabilitation of Craniofacial AnomaliesUniversity of São Paulo School of Dentistry Department of OrthodonticsDental Press InternationalState University of São Paulo School of DentistryState University of São Paulo School of Dentistry Department of OrthodonticsUniversity of São Paulo School of Dentistry Hospital of Rehabilitation of Craniofacial AnomaliesUniversity of São Paulo School of Dentistry Department of OrthodonticsPeixoto, Adriano Porto [UNESP]Pinto, Ary Dos Santos [UNESP]Garib, Daniela GambaGonçalves, João Roberto [UNESP]2015-08-06T16:14:49Z2015-08-06T16:14:49Z2014-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article71-79application/pdfhttp://dx.doi.org/10.1590/2176-9451.19.4.071-079.oarDental Press Journal of Orthodontics. Dental Press International, v. 19, n. 4, p. 71-79, 2014.2176-9451http://hdl.handle.net/11449/12620410.1590/2176-9451.19.4.071-079.oarS2176-94512014000400071S2176-94512014000400071.pdf656254005711158015486261941136650000-0003-0588-2228SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengDental Press Journal of Orthodontics0,489info:eu-repo/semantics/openAccess2024-09-26T14:22:03Zoai:repositorio.unesp.br:11449/126204Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-26T14:22:03Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Three-dimensional dental arch changes of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusion
title Three-dimensional dental arch changes of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusion
spellingShingle Three-dimensional dental arch changes of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusion
Peixoto, Adriano Porto [UNESP]
Orthodontics
Orthognathic surgery
Malocclusion
Dental models
Ortodontia
Cirurgia ortognática
Má oclusão
Modelos dentários
title_short Three-dimensional dental arch changes of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusion
title_full Three-dimensional dental arch changes of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusion
title_fullStr Three-dimensional dental arch changes of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusion
title_full_unstemmed Three-dimensional dental arch changes of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusion
title_sort Three-dimensional dental arch changes of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusion
author Peixoto, Adriano Porto [UNESP]
author_facet Peixoto, Adriano Porto [UNESP]
Pinto, Ary Dos Santos [UNESP]
Garib, Daniela Gamba
Gonçalves, João Roberto [UNESP]
author_role author
author2 Pinto, Ary Dos Santos [UNESP]
Garib, Daniela Gamba
Gonçalves, João Roberto [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv State University of São Paulo School of Dentistry
State University of São Paulo School of Dentistry Department of Orthodontics
University of São Paulo School of Dentistry Hospital of Rehabilitation of Craniofacial Anomalies
University of São Paulo School of Dentistry Department of Orthodontics
dc.contributor.author.fl_str_mv Peixoto, Adriano Porto [UNESP]
Pinto, Ary Dos Santos [UNESP]
Garib, Daniela Gamba
Gonçalves, João Roberto [UNESP]
dc.subject.por.fl_str_mv Orthodontics
Orthognathic surgery
Malocclusion
Dental models
Ortodontia
Cirurgia ortognática
Má oclusão
Modelos dentários
topic Orthodontics
Orthognathic surgery
Malocclusion
Dental models
Ortodontia
Cirurgia ortognática
Má oclusão
Modelos dentários
description INTRODUCTION:This study assessed the three-dimensional changes in the dental arch of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusions at three different periods.METHODS:Landmarks previously identified on upper and lower dental casts were digitized on a three-dimensional digitizer MicroScribe-3DX and stored in Excel worksheets in order to assess the width, length and depth of patient's dental arches.RESULTS:During orthodontic preparation, the maxillary and mandibular transverse dimensions measured at the premolar regions were increased and maintained throughout the follow-up period. Intercanine width was increased only in the upper arch during orthodontic preparation. Maxillary arch length was reduced during orthodontic finalization, only. Upper and lower arch depths were stable in the study periods. Differences between centroid and gingival changes suggested that upper and lower arch premolars buccaly proclined during the pre-surgical period.CONCLUSIONS:Maxillary and mandibular dental arches presented transverse expansion at premolar regions during preoperative orthodontic preparation, with a tendency towards buccal tipping. The transverse dimensions were not altered after surgery. No sagittal or vertical changes were observed during the follow-up periods.
publishDate 2014
dc.date.none.fl_str_mv 2014-08-01
2015-08-06T16:14:49Z
2015-08-06T16:14:49Z
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/10.1590/2176-9451.19.4.071-079.oar
Dental Press Journal of Orthodontics. Dental Press International, v. 19, n. 4, p. 71-79, 2014.
2176-9451
http://hdl.handle.net/11449/126204
10.1590/2176-9451.19.4.071-079.oar
S2176-94512014000400071
S2176-94512014000400071.pdf
6562540057111580
1548626194113665
0000-0003-0588-2228
url http://dx.doi.org/10.1590/2176-9451.19.4.071-079.oar
http://hdl.handle.net/11449/126204
identifier_str_mv Dental Press Journal of Orthodontics. Dental Press International, v. 19, n. 4, p. 71-79, 2014.
2176-9451
10.1590/2176-9451.19.4.071-079.oar
S2176-94512014000400071
S2176-94512014000400071.pdf
6562540057111580
1548626194113665
0000-0003-0588-2228
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Dental Press Journal of Orthodontics
0,489
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 71-79
application/pdf
dc.publisher.none.fl_str_mv Dental Press International
publisher.none.fl_str_mv Dental Press International
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 repositoriounesp@unesp.br
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