Facial anthropometrics landmarks used to obtain the occlusal vertical dimension - a stereophotogrammetry study

Restoring the occlusal vertical dimension (OVD) in occlusal imbalance, multiple dental absences, and severe wear is essential to achieving satisfactory oral rehabilitation. Despite several methods to determine the OVD, there is no single and precise. The present study aimed to use stereophotogrammet...

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Author: Caballero, Jorge Tomasio
Format: doctoral thesis
Status:Published version
Publication Date:2022
Country:Brasil
Institution:Universidade de São Paulo (USP)
Repository:Biblioteca Digital de Teses e Dissertações da USP
Language:English
OAI Identifier:oai:teses.usp.br:tde-18112022-115010
Online Access:https://www.teses.usp.br/teses/disponiveis/25/25146/tde-18112022-115010/
Access Level:Open access
Keyword:Dimensão vertical
Fotogrametria
Imagem
Imaging
Mouth rehabilitation
Photogrammetry
Reabilitação bucal
Three-dimensional
Vertical dimension
id BR_d78cc011b8f1203c38c395ffca74d75b
oai_identifier_str oai:teses.usp.br:tde-18112022-115010
network_acronym_str BR
network_name_str Brasil
repository_id_str
dc.title.none.fl_str_mv Facial anthropometrics landmarks used to obtain the occlusal vertical dimension - a stereophotogrammetry study
Avaliação através de estereofotogrametria, de medidas faciais antropométricas utilizadas para obtenção da dimensão vertical de oclusão
title Facial anthropometrics landmarks used to obtain the occlusal vertical dimension - a stereophotogrammetry study
spellingShingle Facial anthropometrics landmarks used to obtain the occlusal vertical dimension - a stereophotogrammetry study
Caballero, Jorge Tomasio
Dimensão vertical
Fotogrametria
Imagem
Imaging
Mouth rehabilitation
Photogrammetry
Reabilitação bucal
Three-dimensional
Vertical dimension
title_short Facial anthropometrics landmarks used to obtain the occlusal vertical dimension - a stereophotogrammetry study
title_full Facial anthropometrics landmarks used to obtain the occlusal vertical dimension - a stereophotogrammetry study
title_fullStr Facial anthropometrics landmarks used to obtain the occlusal vertical dimension - a stereophotogrammetry study
title_full_unstemmed Facial anthropometrics landmarks used to obtain the occlusal vertical dimension - a stereophotogrammetry study
title_sort Facial anthropometrics landmarks used to obtain the occlusal vertical dimension - a stereophotogrammetry study
dc.creator.none.fl_str_mv Caballero, Jorge Tomasio
author Caballero, Jorge Tomasio
author_facet Caballero, Jorge Tomasio
author_role author
dc.contributor.none.fl_str_mv Soares, Simone
dc.subject.por.fl_str_mv Dimensão vertical
Fotogrametria
Imagem
Imaging
Mouth rehabilitation
Photogrammetry
Reabilitação bucal
Three-dimensional
Vertical dimension
topic Dimensão vertical
Fotogrametria
Imagem
Imaging
Mouth rehabilitation
Photogrammetry
Reabilitação bucal
Three-dimensional
Vertical dimension
description Restoring the occlusal vertical dimension (OVD) in occlusal imbalance, multiple dental absences, and severe wear is essential to achieving satisfactory oral rehabilitation. Despite several methods to determine the OVD, there is no single and precise. The present study aimed to use stereophotogrammetry to assess the relationship between facial measurements and compare metrics techniques to obtain OVD among individuals aged ranging 20 to 65 years. The analysis was performed on 186 patients divided into four groups: G1 - 46 patients aged between 20 and 30 years; G2 - 35 patients aged 31 to 40 years; G3 - 50 patients aged 41 to 50 years; G4 - 55 patients aged 51 to 65 years. Relevant anthropometrics landmarks relationship to OVD were pointed on the face, and 3D images were obtained using the Vectra H1 (Canfield Scientific, Inc, Fairfield, NJ, USA) portable stereophotogrammetry camera system. The linear measurements were measured by VAM elaboration software (Canfield Scientific, Inc). Linear regression analysis was performed to evaluate the relationships between the measurements of the lower third of the face (Sn-Gn and Prn-Pg). The ANOVA was applied to compare the Sn-Gn measurements with the measurements from the outer corner of the eyes to the straight lines of the commissures in the vertical direction (Exo R/L-Ch\'R/L) in the evaluated groups. P < .05 was considered significant. Through multiple linear regression, 13 linear measures predictive of OVD were evaluated, and only four were considered statistically significant for the Sn-Gn model: Exo R Ch\' R; ExoL EndL x2; EndR EndL x2 and sex. For the Prn-Pg model, three independent variables showed a statistically significant difference: Exo R-Ch\' R; Exo L-Ch\'L, and Exo L-End Lx2. The ExoR-Ch\'R and ExoL-EndoLx2 predictors significantly impact the OVD through stereophotogrammetry. Comparing the groups (ANOVA) and the Sn-Gn measurements concerning the outer corner of the eyes (ExoR/L) and the straight line of the commissure (Ch\'R/L) and the pupil (PupilR/L) and the straight line of the commissure (Ch\'\'R/L), both vertically, the results showed a statistically significant difference in all measurements except PupilL-Ch\'\'L. It is concluded that the Willis method, which establishes the measurement from the outer corner of the eye to the straight line of the commissure as a method to obtain the OVD, only has relevance in the measurement of the pupil to the left straight line of the commissure (PupilL/Ch\'L). Not finding support in the other measures to establish OVD with stereophotogrammetry.
publishDate 2022
dc.date.none.fl_str_mv 2022-08-29
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.teses.usp.br/teses/disponiveis/25/25146/tde-18112022-115010/
url https://www.teses.usp.br/teses/disponiveis/25/25146/tde-18112022-115010/
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv
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
dc.coverage.none.fl_str_mv
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
dc.source.none.fl_str_mv
reponame:Biblioteca Digital de Teses e Dissertações da USP
instname:Universidade de São Paulo (USP)
instacron:USP
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)
repository.mail.fl_str_mv virginia@if.usp.br|| atendimento@aguia.usp.br||virginia@if.usp.br
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spelling Facial anthropometrics landmarks used to obtain the occlusal vertical dimension - a stereophotogrammetry studyAvaliação através de estereofotogrametria, de medidas faciais antropométricas utilizadas para obtenção da dimensão vertical de oclusãoDimensão verticalFotogrametriaImagemImagingMouth rehabilitationPhotogrammetryReabilitação bucalThree-dimensionalVertical dimensionRestoring the occlusal vertical dimension (OVD) in occlusal imbalance, multiple dental absences, and severe wear is essential to achieving satisfactory oral rehabilitation. Despite several methods to determine the OVD, there is no single and precise. The present study aimed to use stereophotogrammetry to assess the relationship between facial measurements and compare metrics techniques to obtain OVD among individuals aged ranging 20 to 65 years. The analysis was performed on 186 patients divided into four groups: G1 - 46 patients aged between 20 and 30 years; G2 - 35 patients aged 31 to 40 years; G3 - 50 patients aged 41 to 50 years; G4 - 55 patients aged 51 to 65 years. Relevant anthropometrics landmarks relationship to OVD were pointed on the face, and 3D images were obtained using the Vectra H1 (Canfield Scientific, Inc, Fairfield, NJ, USA) portable stereophotogrammetry camera system. The linear measurements were measured by VAM elaboration software (Canfield Scientific, Inc). Linear regression analysis was performed to evaluate the relationships between the measurements of the lower third of the face (Sn-Gn and Prn-Pg). The ANOVA was applied to compare the Sn-Gn measurements with the measurements from the outer corner of the eyes to the straight lines of the commissures in the vertical direction (Exo R/L-Ch\'R/L) in the evaluated groups. P < .05 was considered significant. Through multiple linear regression, 13 linear measures predictive of OVD were evaluated, and only four were considered statistically significant for the Sn-Gn model: Exo R Ch\' R; ExoL EndL x2; EndR EndL x2 and sex. For the Prn-Pg model, three independent variables showed a statistically significant difference: Exo R-Ch\' R; Exo L-Ch\'L, and Exo L-End Lx2. The ExoR-Ch\'R and ExoL-EndoLx2 predictors significantly impact the OVD through stereophotogrammetry. Comparing the groups (ANOVA) and the Sn-Gn measurements concerning the outer corner of the eyes (ExoR/L) and the straight line of the commissure (Ch\'R/L) and the pupil (PupilR/L) and the straight line of the commissure (Ch\'\'R/L), both vertically, the results showed a statistically significant difference in all measurements except PupilL-Ch\'\'L. It is concluded that the Willis method, which establishes the measurement from the outer corner of the eye to the straight line of the commissure as a method to obtain the OVD, only has relevance in the measurement of the pupil to the left straight line of the commissure (PupilL/Ch\'L). Not finding support in the other measures to establish OVD with stereophotogrammetry.Restabelecer a dimensão vertical de oclusão (DVO), quando não há estabilidade oclusal e ausências múltiplas dentárias além de desgastes acentuados, é fundamental para atingir uma reabilitação oral satisfatória. Apesar da existência de vários métodos para determinar a DVO não há um método único e preciso. O presente trabalho se propôs a utilizar da estereofotogrametria para observar a relação entre medidas antropométricas da face e comparar as técnicas métricas para obtenção da DVO entre indivíduos de 20 a 65 anos. A análise foi realizada em 186 pacientes divididos em quatro grupos: G1 - 46 pacientes de 20 a 30 anos de idade; G2 - 35 pacientes de 31 a 40 anos de idade; G3 - 50 pacientes de 41 a 50 anos de idade; G4 - 55 pacientes de 51 a 65 anos de idade. As fotografias 3D foram obtidas utilizando o sistema portátil de câmera de estereofotogrametria Vectra H1 (Canfield Scientific, Inc, Fairfield, NJ, EUA). Pontos morfométricos foram estabelecidos na face previamente a captura da imagem e, através do software VAM elaboration (Canfield Scientific, Inc), medidas lineares de relevância para a avaliação da DVO foram mensuradas. Regressão linear múltipla avaliou a relação entre as medidas do terço inferior da face (Sn-Gn e Prn-Pg). O ANOVA foi aplicado para comparar as medidas de Sn-Gn com as medidas do canto externo dos olhos às linhas retas dirigidas lateralmente as comissuras, no sentido vertical (Exo R/L-ChR/L) nos grupos avaliados. O nível de significância de .05 foi considerado significativo. Através da regressão linear múltipla, 13 medidas lineares preditoras da DVO foram avaliadas e apenas 4 foram consideradas estatisticamente significativas para o modelo Sn-Gn: Exo R Ch´ R; ExoL EndL x2; EndR EndL x2 e sexo. Para o modelo Prn-Pg, três variáveis independentes apresentaram diferença estatisticamente significativa: Exo R-Ch R; Exo L-ChL e Exo L-End Lx2. Os preditores ExoR-ChR e ExoL-EndoLx2 impactam significativamente a DVO, através da estereofotogrametria. Quando se comparou os grupos (ANOVA) e as medidas de Sn-Gn em relação ao canto externo dos olhos (ExoR/L) e a linha reta da comissura (ChR/L) e a pupila (PupilR/L) e a linha reta da comissura (ChR/L), ambas no sentido vertical, os resultados mostraram diferença estatisticamente significativa em todas as medidas exceto em PupilL-ChL. Conclui-se que o método de Willis, que estabelece a medida do canto externo do olho à linha da comissura direcionada lateralmente e que se encontra com a linha vertical do canto externo do olho, como método para estabelecer a DVO só apresenta relevância na medida da pupila à comissura do lado esquerdo (PupilL/ChL), não encontrando respaldo nas demais medidas para estabelecimento da DVO com a estereofotogrametria.Biblioteca Digitais de Teses e Dissertações da USPSoares, Simone2022-08-29info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfhttps://www.teses.usp.br/teses/disponiveis/25/25146/tde-18112022-115010/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/openAccessengCaballero, Jorge Tomasio2022-11-22T13:54:06Zoai:teses.usp.br:tde-18112022-115010Biblioteca 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:27212022-11-22T13:54:06Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP)false
score 15,127369

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