Three-dimensional evaluation of mandibular anterior dental crowding in digital dental casts

Detalhes bibliográficos
Autor(a) principal: Fernandes,Luciana Quintanilha Pires
Data de Publicação: 2017
Outros Autores: Nunes,Livia Kelly Ferraz, Alves,Luana Santos, Ribeiro,Felipe de Assis Carvalho, Capelli Júnior,Jonas
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Dental Press Journal of Orthodontics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512017000300064
Resumo: ABSTRACT Introduction: Digital dental models provide a more accurate and comprehensive assessment of orthodontic cases. Although this technique is quite promising, there are few three-dimensional measurements methods described in the literature. Objective: The aim of this study was to propose a method for assessing the degree of mandibular anterior dental crowding in the three planes of space, using digital dental models. Methods: Thirty dental casts were selected and scanned by Maestro 3D Dental Scanner and imported by Geomagic Qualify 2013 software. The degree of crowding was calculated by two examiners, based on the Little’s Irregularity Index, by means of the definition of axial, coronal and sagittal planes for each model. Intraexaminer analysis was performed with Dahlberg’s Formula (DF) and Intraclass Correlation Coefficients (ICC), and interexaminer analysis was performed with ICC and paired t-test. Results: The ICC showed an excellent agreement (p < 0.05) for all measurements, except for the intraexaminer and interexaminer in the Z-axis, in which it was found a moderate agreement. The DF showed a satisfactory accuracy with all measurements showing less than 1 mm difference. The paired t-test showed statistical difference between the examiners in two measurements, although it was clinical irrelevant. Conclusion: When comparing the three planes of space, the Z-axis showed the greatest variation in landmarks placement; however, overall, the present method seems precise and reproducible.
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spelling Three-dimensional evaluation of mandibular anterior dental crowding in digital dental castsOrthodonticsDiagnosisDental modelsMalocclusionABSTRACT Introduction: Digital dental models provide a more accurate and comprehensive assessment of orthodontic cases. Although this technique is quite promising, there are few three-dimensional measurements methods described in the literature. Objective: The aim of this study was to propose a method for assessing the degree of mandibular anterior dental crowding in the three planes of space, using digital dental models. Methods: Thirty dental casts were selected and scanned by Maestro 3D Dental Scanner and imported by Geomagic Qualify 2013 software. The degree of crowding was calculated by two examiners, based on the Little’s Irregularity Index, by means of the definition of axial, coronal and sagittal planes for each model. Intraexaminer analysis was performed with Dahlberg’s Formula (DF) and Intraclass Correlation Coefficients (ICC), and interexaminer analysis was performed with ICC and paired t-test. Results: The ICC showed an excellent agreement (p < 0.05) for all measurements, except for the intraexaminer and interexaminer in the Z-axis, in which it was found a moderate agreement. The DF showed a satisfactory accuracy with all measurements showing less than 1 mm difference. The paired t-test showed statistical difference between the examiners in two measurements, although it was clinical irrelevant. Conclusion: When comparing the three planes of space, the Z-axis showed the greatest variation in landmarks placement; however, overall, the present method seems precise and reproducible.Dental Press International2017-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512017000300064Dental Press Journal of Orthodontics v.22 n.3 2017reponame:Dental Press Journal of Orthodonticsinstname:Dental Press International (DPI)instacron:DPI10.1590/2177-6709.22.3.064-071.oarinfo:eu-repo/semantics/openAccessFernandes,Luciana Quintanilha PiresNunes,Livia Kelly FerrazAlves,Luana SantosRibeiro,Felipe de Assis CarvalhoCapelli Júnior,Jonaseng2017-07-20T00:00:00Zoai:scielo:S2176-94512017000300064Revistahttp://www.scielo.br/dpjoONGhttps://old.scielo.br/oai/scielo-oai.phpartigos@dentalpress.com.br||davidnormando@hotmail.com2177-67092176-9451opendoar:2017-07-20T00:00Dental Press Journal of Orthodontics - Dental Press International (DPI)false
dc.title.none.fl_str_mv Three-dimensional evaluation of mandibular anterior dental crowding in digital dental casts
title Three-dimensional evaluation of mandibular anterior dental crowding in digital dental casts
spellingShingle Three-dimensional evaluation of mandibular anterior dental crowding in digital dental casts
Fernandes,Luciana Quintanilha Pires
Orthodontics
Diagnosis
Dental models
Malocclusion
title_short Three-dimensional evaluation of mandibular anterior dental crowding in digital dental casts
title_full Three-dimensional evaluation of mandibular anterior dental crowding in digital dental casts
title_fullStr Three-dimensional evaluation of mandibular anterior dental crowding in digital dental casts
title_full_unstemmed Three-dimensional evaluation of mandibular anterior dental crowding in digital dental casts
title_sort Three-dimensional evaluation of mandibular anterior dental crowding in digital dental casts
author Fernandes,Luciana Quintanilha Pires
author_facet Fernandes,Luciana Quintanilha Pires
Nunes,Livia Kelly Ferraz
Alves,Luana Santos
Ribeiro,Felipe de Assis Carvalho
Capelli Júnior,Jonas
author_role author
author2 Nunes,Livia Kelly Ferraz
Alves,Luana Santos
Ribeiro,Felipe de Assis Carvalho
Capelli Júnior,Jonas
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Fernandes,Luciana Quintanilha Pires
Nunes,Livia Kelly Ferraz
Alves,Luana Santos
Ribeiro,Felipe de Assis Carvalho
Capelli Júnior,Jonas
dc.subject.por.fl_str_mv Orthodontics
Diagnosis
Dental models
Malocclusion
topic Orthodontics
Diagnosis
Dental models
Malocclusion
description ABSTRACT Introduction: Digital dental models provide a more accurate and comprehensive assessment of orthodontic cases. Although this technique is quite promising, there are few three-dimensional measurements methods described in the literature. Objective: The aim of this study was to propose a method for assessing the degree of mandibular anterior dental crowding in the three planes of space, using digital dental models. Methods: Thirty dental casts were selected and scanned by Maestro 3D Dental Scanner and imported by Geomagic Qualify 2013 software. The degree of crowding was calculated by two examiners, based on the Little’s Irregularity Index, by means of the definition of axial, coronal and sagittal planes for each model. Intraexaminer analysis was performed with Dahlberg’s Formula (DF) and Intraclass Correlation Coefficients (ICC), and interexaminer analysis was performed with ICC and paired t-test. Results: The ICC showed an excellent agreement (p < 0.05) for all measurements, except for the intraexaminer and interexaminer in the Z-axis, in which it was found a moderate agreement. The DF showed a satisfactory accuracy with all measurements showing less than 1 mm difference. The paired t-test showed statistical difference between the examiners in two measurements, although it was clinical irrelevant. Conclusion: When comparing the three planes of space, the Z-axis showed the greatest variation in landmarks placement; however, overall, the present method seems precise and reproducible.
publishDate 2017
dc.date.none.fl_str_mv 2017-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512017000300064
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512017000300064
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2177-6709.22.3.064-071.oar
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dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Dental Press International
publisher.none.fl_str_mv Dental Press International
dc.source.none.fl_str_mv Dental Press Journal of Orthodontics v.22 n.3 2017
reponame:Dental Press Journal of Orthodontics
instname:Dental Press International (DPI)
instacron:DPI
instname_str Dental Press International (DPI)
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reponame_str Dental Press Journal of Orthodontics
collection Dental Press Journal of Orthodontics
repository.name.fl_str_mv Dental Press Journal of Orthodontics - Dental Press International (DPI)
repository.mail.fl_str_mv artigos@dentalpress.com.br||davidnormando@hotmail.com
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