Three-dimensional evaluation of mandibular anterior dental crowding in digital dental casts
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
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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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 |
format |
article |
status_str |
publishedVersion |
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 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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) |
instacron_str |
DPI |
institution |
DPI |
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 |
_version_ |
1754122398003625984 |