Effect of three different attachment designs in the extrusive forces generated by thermoplastic aligners in the maxillary central incisor
Autor(a) principal: | |
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Data de Publicação: | 2020 |
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=S2176-94512020000300046 |
Resumo: | ABSTRACT Introduction: Orthodontic aligners use have increased in dentistry. The resolution of complex movements such as extrusion demands the use of attachments to reach the aimed force, but just a few studies have been developed to evaluate the biomechanical performance of the aligners and their accessories. Objective: The objective of this study was to evaluate on the three axes (X, Y and Z) the forces generated by three different attachment designs for the extrusion of the maxillary central incisor using esthetic orthodontic aligners. Methods: Three prototypes of maxillary models were developed, each one with a specific attachment inserted in the central incisor. Three aligners were manufactured for each of the three attachment designs, with 0.33-mm activation in the direction of the extrusion. An analytical device was used to evaluate the forces applied to the three axes by each aligner/attachment. The data were assessed by one-way ANOVA and Tukey’s test (α = 0.05). Results: All of the studied attachment designs could satisfactorily perform the extrusion movement. However, force intensities were different in the three designs (design 1 = 2.5 N; design 2 = 2.2 N, and design 3 = 1.1 N). Furthermore, two of the three attachment designs (designs 1 and 2) eventually exerted significant forces on the X (mesiodistal) and Y (buccopalatal) axes. Conclusion: The attachment design 3 presents the best distribution of forces for extrusion movement, generating almost null forces on X and Y axes, and lower intensity of force on the Z axis. |
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Effect of three different attachment designs in the extrusive forces generated by thermoplastic aligners in the maxillary central incisorOrthodontic extrusionOrthodontic appliancesBiomedical technologyABSTRACT Introduction: Orthodontic aligners use have increased in dentistry. The resolution of complex movements such as extrusion demands the use of attachments to reach the aimed force, but just a few studies have been developed to evaluate the biomechanical performance of the aligners and their accessories. Objective: The objective of this study was to evaluate on the three axes (X, Y and Z) the forces generated by three different attachment designs for the extrusion of the maxillary central incisor using esthetic orthodontic aligners. Methods: Three prototypes of maxillary models were developed, each one with a specific attachment inserted in the central incisor. Three aligners were manufactured for each of the three attachment designs, with 0.33-mm activation in the direction of the extrusion. An analytical device was used to evaluate the forces applied to the three axes by each aligner/attachment. The data were assessed by one-way ANOVA and Tukey’s test (α = 0.05). Results: All of the studied attachment designs could satisfactorily perform the extrusion movement. However, force intensities were different in the three designs (design 1 = 2.5 N; design 2 = 2.2 N, and design 3 = 1.1 N). Furthermore, two of the three attachment designs (designs 1 and 2) eventually exerted significant forces on the X (mesiodistal) and Y (buccopalatal) axes. Conclusion: The attachment design 3 presents the best distribution of forces for extrusion movement, generating almost null forces on X and Y axes, and lower intensity of force on the Z axis.Dental Press International2020-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512020000300046Dental Press Journal of Orthodontics v.25 n.3 2020reponame:Dental Press Journal of Orthodonticsinstname:Dental Press International (DPI)instacron:DPI10.1590/2177-6709.25.3.046-053.oarinfo:eu-repo/semantics/openAccessCosta,RafaelCalheiros,Fernanda CalabróBallester,Rafael YagüeGonçalves,Fláviaeng2020-08-17T00:00:00Zoai:scielo:S2176-94512020000300046Revistahttp://www.scielo.br/dpjoONGhttps://old.scielo.br/oai/scielo-oai.phpartigos@dentalpress.com.br||davidnormando@hotmail.com2177-67092176-9451opendoar:2020-08-17T00:00Dental Press Journal of Orthodontics - Dental Press International (DPI)false |
dc.title.none.fl_str_mv |
Effect of three different attachment designs in the extrusive forces generated by thermoplastic aligners in the maxillary central incisor |
title |
Effect of three different attachment designs in the extrusive forces generated by thermoplastic aligners in the maxillary central incisor |
spellingShingle |
Effect of three different attachment designs in the extrusive forces generated by thermoplastic aligners in the maxillary central incisor Costa,Rafael Orthodontic extrusion Orthodontic appliances Biomedical technology |
title_short |
Effect of three different attachment designs in the extrusive forces generated by thermoplastic aligners in the maxillary central incisor |
title_full |
Effect of three different attachment designs in the extrusive forces generated by thermoplastic aligners in the maxillary central incisor |
title_fullStr |
Effect of three different attachment designs in the extrusive forces generated by thermoplastic aligners in the maxillary central incisor |
title_full_unstemmed |
Effect of three different attachment designs in the extrusive forces generated by thermoplastic aligners in the maxillary central incisor |
title_sort |
Effect of three different attachment designs in the extrusive forces generated by thermoplastic aligners in the maxillary central incisor |
author |
Costa,Rafael |
author_facet |
Costa,Rafael Calheiros,Fernanda Calabró Ballester,Rafael Yagüe Gonçalves,Flávia |
author_role |
author |
author2 |
Calheiros,Fernanda Calabró Ballester,Rafael Yagüe Gonçalves,Flávia |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Costa,Rafael Calheiros,Fernanda Calabró Ballester,Rafael Yagüe Gonçalves,Flávia |
dc.subject.por.fl_str_mv |
Orthodontic extrusion Orthodontic appliances Biomedical technology |
topic |
Orthodontic extrusion Orthodontic appliances Biomedical technology |
description |
ABSTRACT Introduction: Orthodontic aligners use have increased in dentistry. The resolution of complex movements such as extrusion demands the use of attachments to reach the aimed force, but just a few studies have been developed to evaluate the biomechanical performance of the aligners and their accessories. Objective: The objective of this study was to evaluate on the three axes (X, Y and Z) the forces generated by three different attachment designs for the extrusion of the maxillary central incisor using esthetic orthodontic aligners. Methods: Three prototypes of maxillary models were developed, each one with a specific attachment inserted in the central incisor. Three aligners were manufactured for each of the three attachment designs, with 0.33-mm activation in the direction of the extrusion. An analytical device was used to evaluate the forces applied to the three axes by each aligner/attachment. The data were assessed by one-way ANOVA and Tukey’s test (α = 0.05). Results: All of the studied attachment designs could satisfactorily perform the extrusion movement. However, force intensities were different in the three designs (design 1 = 2.5 N; design 2 = 2.2 N, and design 3 = 1.1 N). Furthermore, two of the three attachment designs (designs 1 and 2) eventually exerted significant forces on the X (mesiodistal) and Y (buccopalatal) axes. Conclusion: The attachment design 3 presents the best distribution of forces for extrusion movement, generating almost null forces on X and Y axes, and lower intensity of force on the Z axis. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-05-01 |
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=S2176-94512020000300046 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512020000300046 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/2177-6709.25.3.046-053.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.25 n.3 2020 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_ |
1754122398544691200 |