Three-dimensional morphometric analysis of dental arches of children with cleft lip and palate: longitudinal study

Detalhes bibliográficos
Autor(a) principal: Mello, Bianca Zeponi Fernandes de
Data de Publicação: 2018
Tipo de documento: Tese
Idioma: eng
Título da fonte: Biblioteca Digital de Teses e Dissertações da USP
Texto Completo: https://www.teses.usp.br/teses/disponiveis/25/25145/tde-26112021-153624/
Resumo: This study aimed to present two papers that show the alterations in the dental arch dimensions of children with cleft lip and palate before and after the primary surgeries. The first study aimed to evaluate the dimensional alterations of the dental arches of neonates with unilateral complete cleft lip and palate before and after two different primary plastic surgeries. The sample was composed of 114 dental casts of 57 children, divided into two groups: Group 1 26 neonates whose lip closure was accomplished at 3 months of life by Millard´s technique and the anterior and posterior palate closure by von Langenbacks technique (VL); Group 2 31 neonates whose lip closure, noses ala correction, and anterior palate closure were accomplished of life by Millard´s technique, Mcombs or Skoogs technique, and vomers flap, respectively at 3 months of life; posterior palate closure was accomplished by VL at 12 months of life. The dental casts were analyzed at two phases: (T1) pre-cheiloplasty and (T2) one year after palatoplasty. The second study aimed to evaluate morphometrically and longitudinally the alterations of the dental arch dimensions of children with cleft lip and palate. The sample was composed by digital dental casts of children with complete cleft lip (Group 1), complete cleft lip and palate (Group 2), and complete cleft palate (Group 3), obtained at pre-cheiloplasty (T1), pre-palatoplasty (T2), and one year after palatoplasty (T3). The measurements of the dental arch dimensions of both studies were performed directly on the digitized models and analyzed by Appliance Designer software. The following dimensions were obtained: intercanine distance, inter-tuberosity distance, anterior arch length, and total arch length. A previously trained and calibrated examiner performed the assessments of both studies. To verify the alterations among groups, t test and ANOVA followed by Tukey was applied. In the first study, no statistically significant differences occurred at pre-cheiloplasty. At one year after palatoplasty, Group 1 had statistically significant greater anterior-posterior arch length (P=0.002) than Group 2. This suggested that the outcomes of the different surgical techniques may cause alterations in the dental arch growth and development of neonates with cleft lip and palate. In the second study, in Group 1, the distances C-C, T-T, and I-TT were statistically greater at T2 than at T1. In Group 2, the distances C-C and I-CC were smaller at T3. T-T distance decreased and I-TT distance increased at all phases. In Group 3, the C-C, T-T, and I-TT distances were statistically greater at T3. The intergroup comparisons showed that C-C and T-T distances were statistically greater in Group 1; C-C and I-CC distances were statistically smaller in Group 2; and I-TT distance was statistically greater in Group 3. The longitudinal evaluation of the changes occurred in the dental arches of children with different oral cleft types showed that cheiloplasty and palatoplasty caused the most alterations in the growth and development of the maxillary dimensions of children with complete cleft lip and palate.
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spelling Three-dimensional morphometric analysis of dental arches of children with cleft lip and palate: longitudinal studyAnálise morfométrica tridimensional dos arcos dentários de crianças com fissura labiopalatina: estudo longitudinalCleft lipCleft palateDental modelsFenda labialFissura palatinaImagem tridimensionalModelos dentáriosThree-dimensional ImagingThis study aimed to present two papers that show the alterations in the dental arch dimensions of children with cleft lip and palate before and after the primary surgeries. The first study aimed to evaluate the dimensional alterations of the dental arches of neonates with unilateral complete cleft lip and palate before and after two different primary plastic surgeries. The sample was composed of 114 dental casts of 57 children, divided into two groups: Group 1 26 neonates whose lip closure was accomplished at 3 months of life by Millard´s technique and the anterior and posterior palate closure by von Langenbacks technique (VL); Group 2 31 neonates whose lip closure, noses ala correction, and anterior palate closure were accomplished of life by Millard´s technique, Mcombs or Skoogs technique, and vomers flap, respectively at 3 months of life; posterior palate closure was accomplished by VL at 12 months of life. The dental casts were analyzed at two phases: (T1) pre-cheiloplasty and (T2) one year after palatoplasty. The second study aimed to evaluate morphometrically and longitudinally the alterations of the dental arch dimensions of children with cleft lip and palate. The sample was composed by digital dental casts of children with complete cleft lip (Group 1), complete cleft lip and palate (Group 2), and complete cleft palate (Group 3), obtained at pre-cheiloplasty (T1), pre-palatoplasty (T2), and one year after palatoplasty (T3). The measurements of the dental arch dimensions of both studies were performed directly on the digitized models and analyzed by Appliance Designer software. The following dimensions were obtained: intercanine distance, inter-tuberosity distance, anterior arch length, and total arch length. A previously trained and calibrated examiner performed the assessments of both studies. To verify the alterations among groups, t test and ANOVA followed by Tukey was applied. In the first study, no statistically significant differences occurred at pre-cheiloplasty. At one year after palatoplasty, Group 1 had statistically significant greater anterior-posterior arch length (P=0.002) than Group 2. This suggested that the outcomes of the different surgical techniques may cause alterations in the dental arch growth and development of neonates with cleft lip and palate. In the second study, in Group 1, the distances C-C, T-T, and I-TT were statistically greater at T2 than at T1. In Group 2, the distances C-C and I-CC were smaller at T3. T-T distance decreased and I-TT distance increased at all phases. In Group 3, the C-C, T-T, and I-TT distances were statistically greater at T3. The intergroup comparisons showed that C-C and T-T distances were statistically greater in Group 1; C-C and I-CC distances were statistically smaller in Group 2; and I-TT distance was statistically greater in Group 3. The longitudinal evaluation of the changes occurred in the dental arches of children with different oral cleft types showed that cheiloplasty and palatoplasty caused the most alterations in the growth and development of the maxillary dimensions of children with complete cleft lip and palate.O propósito deste estudo foi apresentar dois artigos que mostram as alterações das dimensões dos arcos dentários de crianças com fissura labiopalatina antes e depois das cirurgias primárias. O primeiro estudo foi proposto para avaliar as alterações dimensionais dos arcos dentários de neonatos com fissura labiopalatina antes e após a realização de duas técnicas distintas de cirurgias plásticas primárias. A amostra foi composta de 114 modelos dentários em gesso de 57 crianças, divididos em dois grupos: Grupo I 26 neonatos, fechamento do lábio realizado aos 3 meses de vida pela técnica de Millard e palato total aos 12 meses, pela técnica de von Langenback (VL); Grupo II 31 neonatos, fechamento do lábio pela técnica de Millard aos 3 meses de vida, correção de asa nasal (técnicas de Mcomb ou Skoog) e palatoplastia anterior com retalho de vômer aos 3 meses. A palatoplastia posterior foi realizada aos 12 meses pela técnica VL. Os modelos foram analisados em 2 fases: (F1) pré-queiloplastia e (F2) 1 ano pós-palatoplastia. No segundo estudo o objetivo foi realizar uma avaliação longitudinal das alterações das dimensões dos arcos dentários de crianças com fissura labiopalatina. A amostra foi composta de modelos digitais de crianças com fissura completa de lábio (Grupo 1), completa de lábio e palato (Grupo 2), e completa de palato (Grupo 3), obtidos nas fases de pré-queiloplastia (Fase 1), pré-palatoplastia (Fase 2), 1 ano póspalatoplastia (Fase 3). As medidas das dimensões dos arcos dentários nos dois estudos foram realizadas nos modelos digitalizados e analisados utilizando software Appliance Designer. As seguintes dimensões foram obtidas: distância intercaninos, distância intertuberosidade, comprimento anterior do arco dentário e comprimento total do arco. Um avaliador previamente calibrado e treinado realizou as avaliações para os dois estudos. Foi aplicado o Teste t e a Análise de Variância, seguida do Teste de Tukey. Para o primeiro estudo não houve diferença estatisticamente significante na fase pré-queiloplastia entre os grupos. Na fase 1 ano pós-palatoplastia houve diferença para o comprimento anteroposterior do arco dentário (p=0,002), entre os grupos, com valores maiores para o grupo I. Para o segundo estudo, no Grupo 1, as distâncias C-C, T-T e I-TT apresentaram diferença estatisticamente significante entre a F1 e F2, com aumento na F2. Para o Grupo 2, houve diferença estatisticamente significante em todas as fases avaliadas. As distâncias C-C e I-CC apresentaram menor valor na F3, T-T diminuiu em todas as fases, e I-TT aumentou em todas as fases. No Grupo 3, as distâncias C-C, T-T e I-TT mostraram diferença estatisticamente significante com aumento na F3. Quando avaliadas as medidas entre os grupos e fases, C-C e T-T mostraram um valor maior para o Grupo 1. A comparação entre F2 e F3 mostraram para as distâncias C-C e I-CC valor menor para o Grupo 2, e I-TT foi maior para o Grupo 3. As avaliações longitudinais nos arcos dentários mostraram que a queiloplastia e palatoplastia causam maiores alterações de crescimento e desenvolvimento maxilares de pacientes com fissura completa de lábio e palato.Biblioteca Digitais de Teses e Dissertações da USPMenezes, Marcio deValarelli, Thais Marchini de OliveiraMello, Bianca Zeponi Fernandes de2018-02-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfhttps://www.teses.usp.br/teses/disponiveis/25/25145/tde-26112021-153624/reponame:Biblioteca Digital de Teses e Dissertações da USPinstname:Universidade de São Paulo (USP)instacron:USPLiberar o conteúdo para acesso público.info:eu-repo/semantics/openAccesseng2021-12-09T20:56:14Zoai:teses.usp.br:tde-26112021-153624Biblioteca Digital de Teses e Dissertaçõeshttp://www.teses.usp.br/PUBhttp://www.teses.usp.br/cgi-bin/mtd2br.plvirginia@if.usp.br|| atendimento@aguia.usp.br||virginia@if.usp.bropendoar:27212021-12-09T20:56:14Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Three-dimensional morphometric analysis of dental arches of children with cleft lip and palate: longitudinal study
Análise morfométrica tridimensional dos arcos dentários de crianças com fissura labiopalatina: estudo longitudinal
title Three-dimensional morphometric analysis of dental arches of children with cleft lip and palate: longitudinal study
spellingShingle Three-dimensional morphometric analysis of dental arches of children with cleft lip and palate: longitudinal study
Mello, Bianca Zeponi Fernandes de
Cleft lip
Cleft palate
Dental models
Fenda labial
Fissura palatina
Imagem tridimensional
Modelos dentários
Three-dimensional Imaging
title_short Three-dimensional morphometric analysis of dental arches of children with cleft lip and palate: longitudinal study
title_full Three-dimensional morphometric analysis of dental arches of children with cleft lip and palate: longitudinal study
title_fullStr Three-dimensional morphometric analysis of dental arches of children with cleft lip and palate: longitudinal study
title_full_unstemmed Three-dimensional morphometric analysis of dental arches of children with cleft lip and palate: longitudinal study
title_sort Three-dimensional morphometric analysis of dental arches of children with cleft lip and palate: longitudinal study
author Mello, Bianca Zeponi Fernandes de
author_facet Mello, Bianca Zeponi Fernandes de
author_role author
dc.contributor.none.fl_str_mv Menezes, Marcio de
Valarelli, Thais Marchini de Oliveira
dc.contributor.author.fl_str_mv Mello, Bianca Zeponi Fernandes de
dc.subject.por.fl_str_mv Cleft lip
Cleft palate
Dental models
Fenda labial
Fissura palatina
Imagem tridimensional
Modelos dentários
Three-dimensional Imaging
topic Cleft lip
Cleft palate
Dental models
Fenda labial
Fissura palatina
Imagem tridimensional
Modelos dentários
Three-dimensional Imaging
description This study aimed to present two papers that show the alterations in the dental arch dimensions of children with cleft lip and palate before and after the primary surgeries. The first study aimed to evaluate the dimensional alterations of the dental arches of neonates with unilateral complete cleft lip and palate before and after two different primary plastic surgeries. The sample was composed of 114 dental casts of 57 children, divided into two groups: Group 1 26 neonates whose lip closure was accomplished at 3 months of life by Millard´s technique and the anterior and posterior palate closure by von Langenbacks technique (VL); Group 2 31 neonates whose lip closure, noses ala correction, and anterior palate closure were accomplished of life by Millard´s technique, Mcombs or Skoogs technique, and vomers flap, respectively at 3 months of life; posterior palate closure was accomplished by VL at 12 months of life. The dental casts were analyzed at two phases: (T1) pre-cheiloplasty and (T2) one year after palatoplasty. The second study aimed to evaluate morphometrically and longitudinally the alterations of the dental arch dimensions of children with cleft lip and palate. The sample was composed by digital dental casts of children with complete cleft lip (Group 1), complete cleft lip and palate (Group 2), and complete cleft palate (Group 3), obtained at pre-cheiloplasty (T1), pre-palatoplasty (T2), and one year after palatoplasty (T3). The measurements of the dental arch dimensions of both studies were performed directly on the digitized models and analyzed by Appliance Designer software. The following dimensions were obtained: intercanine distance, inter-tuberosity distance, anterior arch length, and total arch length. A previously trained and calibrated examiner performed the assessments of both studies. To verify the alterations among groups, t test and ANOVA followed by Tukey was applied. In the first study, no statistically significant differences occurred at pre-cheiloplasty. At one year after palatoplasty, Group 1 had statistically significant greater anterior-posterior arch length (P=0.002) than Group 2. This suggested that the outcomes of the different surgical techniques may cause alterations in the dental arch growth and development of neonates with cleft lip and palate. In the second study, in Group 1, the distances C-C, T-T, and I-TT were statistically greater at T2 than at T1. In Group 2, the distances C-C and I-CC were smaller at T3. T-T distance decreased and I-TT distance increased at all phases. In Group 3, the C-C, T-T, and I-TT distances were statistically greater at T3. The intergroup comparisons showed that C-C and T-T distances were statistically greater in Group 1; C-C and I-CC distances were statistically smaller in Group 2; and I-TT distance was statistically greater in Group 3. The longitudinal evaluation of the changes occurred in the dental arches of children with different oral cleft types showed that cheiloplasty and palatoplasty caused the most alterations in the growth and development of the maxillary dimensions of children with complete cleft lip and palate.
publishDate 2018
dc.date.none.fl_str_mv 2018-02-16
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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url https://www.teses.usp.br/teses/disponiveis/25/25145/tde-26112021-153624/
dc.language.iso.fl_str_mv eng
language eng
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dc.rights.driver.fl_str_mv Liberar o conteúdo para acesso público.
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Liberar o conteúdo para acesso público.
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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dc.publisher.none.fl_str_mv Biblioteca Digitais de Teses e Dissertações da USP
publisher.none.fl_str_mv Biblioteca Digitais de Teses e Dissertações da USP
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reponame:Biblioteca Digital de Teses e Dissertações da USP
instname:Universidade de São Paulo (USP)
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instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Biblioteca Digital de Teses e Dissertações da USP
collection Biblioteca Digital de Teses e Dissertações da USP
repository.name.fl_str_mv Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP)
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