Three-dimensional comparison of digital models obtained from different types of scanning devices

Detalhes bibliográficos
Ano de defesa: 2025
Autor(a) principal: Santos, Lucas Gonçalves
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: eng
Instituição de defesa: Biblioteca Digitais de Teses e Dissertações da USP
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Dental models
Imageamento tridimensional
Modelos dentários
Orthodontics
Ortodontia
Three-dimensional imaging
Link de acesso: https://www.teses.usp.br/teses/disponiveis/25/25144/tde-12062025-172503/
Resumo: This study aimed to compare individual tooth changes between three different types of scanning devices using three-dimensional superimposition of digital dental models. This retrospective study included digital dental models of 20 adults (12 female, 8 male; mean age of 31.8 ± 5.52 years) with acceptable occlusion obtained directly from a Trios® intraoral scanner (T) and Panda® intraoral scanner (P), and indirectly from a E3® desktop (E). Landmarks were placed bilaterally in central incisors, canines, first premolars and first molars in the maxilla and mandible to perform the superimpositions using 3D Slicer software. Three-dimensional displacements were quantified. Mean differences and standard deviation were obtained for all variables. Intergroup comparison was performed using repeated measurers ANOVA, followed by Tukey test or Friedman test followed by Durbin-Conover test (p<0.05). In the maxilla, similar results were obtained for the three equipment. Negligible discrepancies were observed, with a minor variation in central incisors between T and E scans (MD: -0.07 ± 0.21; p=0.012). Greater discrepancies were observed for the mandibular arch, especially when assessing digital models obtained indirectly from the conventional plaster models. Mandibular digital dental models derived from plaster models demonstrated greater discrepancies in comparison with other scanning devices, whereas maxillary dental models were similar across different equipment. Intraoral scanners produced similar digital dental models.
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spelling Three-dimensional comparison of digital models obtained from different types of scanning devicesComparação tridimensional de modelos digitais obtidos por diferentes tipos de equipamentos de scannersDental modelsImageamento tridimensionalModelos dentáriosOrthodonticsOrtodontiaThree-dimensional imagingThis study aimed to compare individual tooth changes between three different types of scanning devices using three-dimensional superimposition of digital dental models. This retrospective study included digital dental models of 20 adults (12 female, 8 male; mean age of 31.8 ± 5.52 years) with acceptable occlusion obtained directly from a Trios® intraoral scanner (T) and Panda® intraoral scanner (P), and indirectly from a E3® desktop (E). Landmarks were placed bilaterally in central incisors, canines, first premolars and first molars in the maxilla and mandible to perform the superimpositions using 3D Slicer software. Three-dimensional displacements were quantified. Mean differences and standard deviation were obtained for all variables. Intergroup comparison was performed using repeated measurers ANOVA, followed by Tukey test or Friedman test followed by Durbin-Conover test (p<0.05). In the maxilla, similar results were obtained for the three equipment. Negligible discrepancies were observed, with a minor variation in central incisors between T and E scans (MD: -0.07 ± 0.21; p=0.012). Greater discrepancies were observed for the mandibular arch, especially when assessing digital models obtained indirectly from the conventional plaster models. Mandibular digital dental models derived from plaster models demonstrated greater discrepancies in comparison with other scanning devices, whereas maxillary dental models were similar across different equipment. Intraoral scanners produced similar digital dental models.Este estudo teve como objetivo comparar as alterações individuais dos dentes entre três diferentes dispositivos de escaneamento, por meio da sobreposição tridimensional de modelos digitais dentários. Este estudo retrospectivo incluiu modelos digitais dentários de 20 adultos (12 mulheres, 8 homens; idade média de 31,8 ± 5,52 anos) com oclusão aceitável obtidos diretamente de um scanner intraoral Trios® (T) e um scanner intraoral Panda® (P), e indiretamente de um scanner de bancada E3®(E). Pontos de referência foram colocados bilateralmente nos incisivos centrais, caninos, primeiros pré-molares e primeiros molares na maxila e na mandíbula para realizar as sobreposições dos modelos digitais dentários utilizando o software 3D Slicer. Deslocamentos tridimensionais foram quantificados. Diferenças médias e desvios padrão foram obtidos para todas as variáveis. A comparação entre os grupos foi realizada utilizando Análise de Variância para medidas repetidas ou teste de Friedman (p<0,05). Na maxila, resultados semelhantes foram obtidos para os três equipamentos. Discrepâncias mínimas foram observadas. Uma variação pequena foi observada para os incisivos centrais entre os escaneamentos T e E (MD: -0,07 ± 0,21; p=0,012). Maiores discrepâncias foram observadas para o arco mandibular, especialmente ao avaliar modelos digitais obtidos indiretamente de modelos de gesso convencionais. Modelos digitais dentários mandibulares derivados de modelos de gesso demonstraram maiores discrepâncias em comparação com outros dispositivos de escaneamento. Modelos dentários maxilares foram semelhantes entre os diferentes equipamentos. Os equipamentos de scanner intraorais apresentaram modelos dentários digitais similares.Biblioteca Digitais de Teses e Dissertações da USPHenriques, Jose Fernando CastanhaMiranda, FeliciaSantos, Lucas Gonçalves2025-03-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttps://www.teses.usp.br/teses/disponiveis/25/25144/tde-12062025-172503/reponame:Biblioteca Digital de Teses e Dissertações da USPinstname:Universidade de São Paulo (USP)instacron:USPReter o conteúdo por motivos de patente, publicação e/ou direitos autoriais.info:eu-repo/semantics/openAccesseng2025-06-17T18:26:02Zoai:teses.usp.br:tde-12062025-172503Biblioteca 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:27212025-06-17T18:26:02Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Three-dimensional comparison of digital models obtained from different types of scanning devices
Comparação tridimensional de modelos digitais obtidos por diferentes tipos de equipamentos de scanners
title Three-dimensional comparison of digital models obtained from different types of scanning devices
spellingShingle Three-dimensional comparison of digital models obtained from different types of scanning devices
Santos, Lucas Gonçalves
Dental models
Imageamento tridimensional
Modelos dentários
Orthodontics
Ortodontia
Three-dimensional imaging
title_short Three-dimensional comparison of digital models obtained from different types of scanning devices
title_full Three-dimensional comparison of digital models obtained from different types of scanning devices
title_fullStr Three-dimensional comparison of digital models obtained from different types of scanning devices
title_full_unstemmed Three-dimensional comparison of digital models obtained from different types of scanning devices
title_sort Three-dimensional comparison of digital models obtained from different types of scanning devices
author Santos, Lucas Gonçalves
author_facet Santos, Lucas Gonçalves
author_role author
dc.contributor.none.fl_str_mv Henriques, Jose Fernando Castanha
Miranda, Felicia
dc.contributor.author.fl_str_mv Santos, Lucas Gonçalves
dc.subject.por.fl_str_mv Dental models
Imageamento tridimensional
Modelos dentários
Orthodontics
Ortodontia
Three-dimensional imaging
topic Dental models
Imageamento tridimensional
Modelos dentários
Orthodontics
Ortodontia
Three-dimensional imaging
description This study aimed to compare individual tooth changes between three different types of scanning devices using three-dimensional superimposition of digital dental models. This retrospective study included digital dental models of 20 adults (12 female, 8 male; mean age of 31.8 ± 5.52 years) with acceptable occlusion obtained directly from a Trios® intraoral scanner (T) and Panda® intraoral scanner (P), and indirectly from a E3® desktop (E). Landmarks were placed bilaterally in central incisors, canines, first premolars and first molars in the maxilla and mandible to perform the superimpositions using 3D Slicer software. Three-dimensional displacements were quantified. Mean differences and standard deviation were obtained for all variables. Intergroup comparison was performed using repeated measurers ANOVA, followed by Tukey test or Friedman test followed by Durbin-Conover test (p<0.05). In the maxilla, similar results were obtained for the three equipment. Negligible discrepancies were observed, with a minor variation in central incisors between T and E scans (MD: -0.07 ± 0.21; p=0.012). Greater discrepancies were observed for the mandibular arch, especially when assessing digital models obtained indirectly from the conventional plaster models. Mandibular digital dental models derived from plaster models demonstrated greater discrepancies in comparison with other scanning devices, whereas maxillary dental models were similar across different equipment. Intraoral scanners produced similar digital dental models.
publishDate 2025
dc.date.none.fl_str_mv 2025-03-10
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.teses.usp.br/teses/disponiveis/25/25144/tde-12062025-172503/
url https://www.teses.usp.br/teses/disponiveis/25/25144/tde-12062025-172503/
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv
dc.rights.driver.fl_str_mv Reter o conteúdo por motivos de patente, publicação e/ou direitos autoriais.
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Reter o conteúdo por motivos de patente, publicação e/ou direitos autoriais.
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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