Avaliação tomográfica dos limites anatômicos da sínfise mandibular em pacientes adultos não-tratados ortodonticamente
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional Manancial UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/21560 |
Resumo: | The aim of the study was to evaluate the bone limits in the region of the lower incisors by Cone Beam volume CT (CBCT), and correlate with the pattern of facial growth, with the inclination of the lower incisors, with the skeletal anteroposterior relationship and the age of patients. Tomographic images of 40 patients orthodontically untreated, have been imported into OsiriX Lite program (Pixmeo, Geneva, Switzerland), which were held multiplanar reconstructions, resulting image corresponding to the lateral teleradiography to determine the facial pattern, through the Facial Height Index (FHI). Moreover, multiplanar reconstructions were made to obtain sagittal sections in the region of the lower incisors. These images measured alveolar bone thickness in buccal, lingual, full of the lower incisors, plus the thickness measurements and total height of the mandibular symphysis. Measurements of alveolar bone thickness buccal, lingual and total were obtained at level 20, 50, 80 and 100% of the root length of the lower incisors. The results of bone measurements were correlated (Pearson correlation) with the facial pattern, with the inclination of the lower incisors, with the skeletal anteroposterior relationship and the age of patients. There were observed weak to moderate correlations among some bone measurements with facial pattern, with the inclination of the incisors and the patient's age. There was no association between the pattern of facial growth and the lingual bone thickness in the lower incisors, and was not observed association between bone measurements and skeletal anteroposterior relationship. It is believed that patients with a tendency to long-face have lesser thickness of the alveolar process of the lower incisors and greater height; patients already prone to short-face have, with rare exceptions, higher labial bone thickness and overall the level of 50, 80 and 100% of the root length. |
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2021-07-22T13:12:26Z2021-07-22T13:12:26Z2016-07-13http://repositorio.ufsm.br/handle/1/21560The aim of the study was to evaluate the bone limits in the region of the lower incisors by Cone Beam volume CT (CBCT), and correlate with the pattern of facial growth, with the inclination of the lower incisors, with the skeletal anteroposterior relationship and the age of patients. Tomographic images of 40 patients orthodontically untreated, have been imported into OsiriX Lite program (Pixmeo, Geneva, Switzerland), which were held multiplanar reconstructions, resulting image corresponding to the lateral teleradiography to determine the facial pattern, through the Facial Height Index (FHI). Moreover, multiplanar reconstructions were made to obtain sagittal sections in the region of the lower incisors. These images measured alveolar bone thickness in buccal, lingual, full of the lower incisors, plus the thickness measurements and total height of the mandibular symphysis. Measurements of alveolar bone thickness buccal, lingual and total were obtained at level 20, 50, 80 and 100% of the root length of the lower incisors. The results of bone measurements were correlated (Pearson correlation) with the facial pattern, with the inclination of the lower incisors, with the skeletal anteroposterior relationship and the age of patients. There were observed weak to moderate correlations among some bone measurements with facial pattern, with the inclination of the incisors and the patient's age. There was no association between the pattern of facial growth and the lingual bone thickness in the lower incisors, and was not observed association between bone measurements and skeletal anteroposterior relationship. It is believed that patients with a tendency to long-face have lesser thickness of the alveolar process of the lower incisors and greater height; patients already prone to short-face have, with rare exceptions, higher labial bone thickness and overall the level of 50, 80 and 100% of the root length.O objetivo do estudo foi avaliar os limites ósseos na região dos incisivos inferiores, através da tomografia computadorizada Cone Beam (TCCB), e correlacionar com o padrão de crescimento facial, inclinação dos incisivos inferiores, relação anteroposterior entre os maxilares e idade dos pacientes. As imagens tomográficas, de 40 pacientes não tratados ortodonticamente, foram importadas para o programa OsiriX Lite (Pixmeo, Geneva, Switzerland), onde foram realizadas reconstruções multiplanares, obtendo imagem correspondente à telerradiografia lateral, para determinação do padrão facial, através do Índice da Altura Facial (IAF). Além disso, foram feitas reconstruções multiplanares, para obtenção de cortes sagitais da região dos incisivos inferiores. Nestas imagens, foram mensuradas as espessuras ósseas alveolares nas faces vestibular, lingual e total dos incisivos inferiores, além das mensurações de espessura e altura total da sínfise mandibular. As medidas das espessuras ósseas alveolares vestibular, lingual e total foram obtidas à nível de 20, 50, 80 e 100% do comprimento radicular dos incisivos inferiores. Os resultados das medidas ósseas foram correlacionadas (Correlação de Pearson) com o padrão facial, com a inclinação dos incisivos inferiores, com a relação entre os maxilares e com a idade dos pacientes. Observou-se correlações fracas à moderadas entre algumas medidas ósseas com padrão facial, com a inclinação dos incisivos e com a idade do paciente. Não houve associação entre o tipo facial e as espessuras ósseas linguais nos incisivos inferiores, assim como não foi observado associação entre as medidas ósseas e a relação esquelética anteroposterior dos maxilares. Acredita-se que pacientes com tendência à padrão de crescimento dolicofacial apresentam menor espessura do processo alveolar dos incisivos inferiores e maior altura; já pacientes com tendência à padrão de crescimento braquifacial apresentam, com raras exceções, maiores espessuras ósseas vestibular e total à nível de 50, 80 e 100% do comprimento radicular.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESporUniversidade Federal de Santa MariaCentro de Ciências da SaúdePrograma de Pós-Graduação em Ciências OdontológicasUFSMBrasilOdontologiaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessImagem tridimensionalIncisivoOrtodontiaProcesso alveolarTomografia computadorizada por Raios XAlveolar processImagingThree-dimensionalIncisorOrthodonticsTomographyX-ray computedCNPQ::CIENCIAS DA SAUDE::ODONTOLOGIAAvaliação tomográfica dos limites anatômicos da sínfise mandibular em pacientes adultos não-tratados ortodonticamenteTomographic evaluation of the anatomical limits of mandibular symphysis in orthodontically untreated adultsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisFerrazzo, Vilmar Antoniohttp://lattes.cnpq.br/0267137255297190Grehs, Renésio ArmindoFarret, Marcel Marchiorihttp://lattes.cnpq.br/4288079249947753Guerino, Paula400200000000600600600600600547a0f79-339c-45da-b5f1-31a97781c8e1118f8931-7862-40db-b5ff-303aecbefa5fdba569c3-e966-4ac2-80e9-2459fb20e0b7eee518c9-90fc-4d64-9fcd-e880c3135e52reponame:Repositório Institucional Manancial UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMLICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Avaliação tomográfica dos limites anatômicos da sínfise mandibular em pacientes adultos não-tratados ortodonticamente |
dc.title.alternative.eng.fl_str_mv |
Tomographic evaluation of the anatomical limits of mandibular symphysis in orthodontically untreated adults |
title |
Avaliação tomográfica dos limites anatômicos da sínfise mandibular em pacientes adultos não-tratados ortodonticamente |
spellingShingle |
Avaliação tomográfica dos limites anatômicos da sínfise mandibular em pacientes adultos não-tratados ortodonticamente Guerino, Paula Imagem tridimensional Incisivo Ortodontia Processo alveolar Tomografia computadorizada por Raios X Alveolar process Imaging Three-dimensional Incisor Orthodontics Tomography X-ray computed CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA |
title_short |
Avaliação tomográfica dos limites anatômicos da sínfise mandibular em pacientes adultos não-tratados ortodonticamente |
title_full |
Avaliação tomográfica dos limites anatômicos da sínfise mandibular em pacientes adultos não-tratados ortodonticamente |
title_fullStr |
Avaliação tomográfica dos limites anatômicos da sínfise mandibular em pacientes adultos não-tratados ortodonticamente |
title_full_unstemmed |
Avaliação tomográfica dos limites anatômicos da sínfise mandibular em pacientes adultos não-tratados ortodonticamente |
title_sort |
Avaliação tomográfica dos limites anatômicos da sínfise mandibular em pacientes adultos não-tratados ortodonticamente |
author |
Guerino, Paula |
author_facet |
Guerino, Paula |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Ferrazzo, Vilmar Antonio |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/0267137255297190 |
dc.contributor.referee1.fl_str_mv |
Grehs, Renésio Armindo |
dc.contributor.referee2.fl_str_mv |
Farret, Marcel Marchiori |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/4288079249947753 |
dc.contributor.author.fl_str_mv |
Guerino, Paula |
contributor_str_mv |
Ferrazzo, Vilmar Antonio Grehs, Renésio Armindo Farret, Marcel Marchiori |
dc.subject.por.fl_str_mv |
Imagem tridimensional Incisivo Ortodontia Processo alveolar Tomografia computadorizada por Raios X |
topic |
Imagem tridimensional Incisivo Ortodontia Processo alveolar Tomografia computadorizada por Raios X Alveolar process Imaging Three-dimensional Incisor Orthodontics Tomography X-ray computed CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA |
dc.subject.eng.fl_str_mv |
Alveolar process Imaging Three-dimensional Incisor Orthodontics Tomography X-ray computed |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA |
description |
The aim of the study was to evaluate the bone limits in the region of the lower incisors by Cone Beam volume CT (CBCT), and correlate with the pattern of facial growth, with the inclination of the lower incisors, with the skeletal anteroposterior relationship and the age of patients. Tomographic images of 40 patients orthodontically untreated, have been imported into OsiriX Lite program (Pixmeo, Geneva, Switzerland), which were held multiplanar reconstructions, resulting image corresponding to the lateral teleradiography to determine the facial pattern, through the Facial Height Index (FHI). Moreover, multiplanar reconstructions were made to obtain sagittal sections in the region of the lower incisors. These images measured alveolar bone thickness in buccal, lingual, full of the lower incisors, plus the thickness measurements and total height of the mandibular symphysis. Measurements of alveolar bone thickness buccal, lingual and total were obtained at level 20, 50, 80 and 100% of the root length of the lower incisors. The results of bone measurements were correlated (Pearson correlation) with the facial pattern, with the inclination of the lower incisors, with the skeletal anteroposterior relationship and the age of patients. There were observed weak to moderate correlations among some bone measurements with facial pattern, with the inclination of the incisors and the patient's age. There was no association between the pattern of facial growth and the lingual bone thickness in the lower incisors, and was not observed association between bone measurements and skeletal anteroposterior relationship. It is believed that patients with a tendency to long-face have lesser thickness of the alveolar process of the lower incisors and greater height; patients already prone to short-face have, with rare exceptions, higher labial bone thickness and overall the level of 50, 80 and 100% of the root length. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-07-13 |
dc.date.accessioned.fl_str_mv |
2021-07-22T13:12:26Z |
dc.date.available.fl_str_mv |
2021-07-22T13:12:26Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
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publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/21560 |
url |
http://repositorio.ufsm.br/handle/1/21560 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
400200000000 |
dc.relation.confidence.fl_str_mv |
600 600 600 600 600 |
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dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências da Saúde |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Ciências Odontológicas |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Odontologia |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências da Saúde |
dc.source.none.fl_str_mv |
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