Occlusal changes with clear aligners and the case complexity influence: a longitudinal cohort clinical study

Detalhes bibliográficos
Autor(a) principal: Marcelino, Vanessa
Data de Publicação: 2022
Outros Autores: Baptista, Sofia, Marcelino, Sandra Andreia, Paco, Maria, Rocha, Duarte, Gonçalves, Maria dos Prazeres, Azevedo, Rui, Guimarães, Antonio Sergio, Fernandes, Gustavo Vicentis Oliveira, Pinho, Teresa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10198/25316
Resumo: Background: Clear aligners (CA) are used 22 h daily, creating a bite-block effect. This work aims to (i) analyze occlusal changes before the beginning of treatment, after the first set of CA and after the use of additional aligners; (ii) compare planned occlusal contacts with the ones obtained after the first set of CA; (iii) analyze the occlusal changes occurred after reaching the orthodontic goals after 3 months of using CA only at night; (iv) evaluate and characterize which tooth movements did not allow the treatment to be completed at the end of the first set of aligners, and finally (v) verify the possible relation between the changes in occlusal contact and areas and parameters such as case complexity and facial biotype. Materials and Methods: A quantitative, comparative, and observational longitudinal cohort study design was implemented to evaluate the clinical data and the complexity levels of cases receiving CA. A non-probabilistic and convenience sample of 82 individuals was recruited. The orthodontic malocclusion traits were classified as simple, moderate, or complex corrections based on the basis of the Align((R)) recommendations with the Invisalign((R)) evaluation tool. According to the Invisalign((R)) criteria, patients need only one complex problem for their case to be classified as complex. Meshlab((R)) v. 2022.02, ClinCheck((R)) version Pro 6.0, My-Itero((R)) version 2.7.9.601 5d plus, and IBM (R) SPSS Statistics software (Statistical Program for Social Sciences), version 27.0 for Windows were the software((R)) used. Results: A statistically significant decrease in area and occlusal contacts number were observed from before the start of orthodontic treatment (T0) to the end of treatment (T1). The changes in the occlusal area (from T0 to T1) were statistically different between hyperdivergent (28.24 [15.51-40.91]) and hypodivergent (16.23 [8.11-24.97]) biotypes (p = 0.031). A significant difference between the hyperdivergent (4.0 [2.0-5.0]) and normodivergent (5.5 [4.0-8.0]) group was found in T1 for the anterior contacts (p = 0.044). Anterior contacts obtained were significantly higher than the planned (p = 0.037) Between T1 and T2 statistically significant increases of occlusal areas, posterior and total contacts were observed. Conclusions: Occlusal contact and area were decreased, either at the end of the first set or after the use of additional aligners. Anterior occlusal contacts obtained were higher than planned as opposed to posterior occlusal contacts obtained. The hardest tooth movements to achieve to complete the treatment were distalization, rotation, and posterior extrusion. After completing orthodontic treatment (T1) to 3 months after (T2) using additional aligners only at night, posterior occlusal contacts were significantly increased, which could be due to the natural settling of the teeth in this period.
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spelling Occlusal changes with clear aligners and the case complexity influence: a longitudinal cohort clinical studyClear alignersMasticatory functionOcclusal contactsOcclusal areaFacial biotypeBackground: Clear aligners (CA) are used 22 h daily, creating a bite-block effect. This work aims to (i) analyze occlusal changes before the beginning of treatment, after the first set of CA and after the use of additional aligners; (ii) compare planned occlusal contacts with the ones obtained after the first set of CA; (iii) analyze the occlusal changes occurred after reaching the orthodontic goals after 3 months of using CA only at night; (iv) evaluate and characterize which tooth movements did not allow the treatment to be completed at the end of the first set of aligners, and finally (v) verify the possible relation between the changes in occlusal contact and areas and parameters such as case complexity and facial biotype. Materials and Methods: A quantitative, comparative, and observational longitudinal cohort study design was implemented to evaluate the clinical data and the complexity levels of cases receiving CA. A non-probabilistic and convenience sample of 82 individuals was recruited. The orthodontic malocclusion traits were classified as simple, moderate, or complex corrections based on the basis of the Align((R)) recommendations with the Invisalign((R)) evaluation tool. According to the Invisalign((R)) criteria, patients need only one complex problem for their case to be classified as complex. Meshlab((R)) v. 2022.02, ClinCheck((R)) version Pro 6.0, My-Itero((R)) version 2.7.9.601 5d plus, and IBM (R) SPSS Statistics software (Statistical Program for Social Sciences), version 27.0 for Windows were the software((R)) used. Results: A statistically significant decrease in area and occlusal contacts number were observed from before the start of orthodontic treatment (T0) to the end of treatment (T1). The changes in the occlusal area (from T0 to T1) were statistically different between hyperdivergent (28.24 [15.51-40.91]) and hypodivergent (16.23 [8.11-24.97]) biotypes (p = 0.031). A significant difference between the hyperdivergent (4.0 [2.0-5.0]) and normodivergent (5.5 [4.0-8.0]) group was found in T1 for the anterior contacts (p = 0.044). Anterior contacts obtained were significantly higher than the planned (p = 0.037) Between T1 and T2 statistically significant increases of occlusal areas, posterior and total contacts were observed. Conclusions: Occlusal contact and area were decreased, either at the end of the first set or after the use of additional aligners. Anterior occlusal contacts obtained were higher than planned as opposed to posterior occlusal contacts obtained. The hardest tooth movements to achieve to complete the treatment were distalization, rotation, and posterior extrusion. After completing orthodontic treatment (T1) to 3 months after (T2) using additional aligners only at night, posterior occlusal contacts were significantly increased, which could be due to the natural settling of the teeth in this period.This work was supported by UNIPRO—Oral Pathology and Rehabilitation Research Unit, University Institute of Health Sciences (IUCS), CESPU, 4585-116 Gandra, Portugal, in the scope of AlignAgen-GI2-CESPU-2022—“Tooth Agenesis and Aligners”.MDPIBiblioteca Digital do IPBMarcelino, VanessaBaptista, SofiaMarcelino, Sandra AndreiaPaco, MariaRocha, DuarteGonçalves, Maria dos PrazeresAzevedo, RuiGuimarães, Antonio SergioFernandes, Gustavo Vicentis OliveiraPinho, Teresa2022-04-04T08:32:22Z20232023-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/25316engMarcelino, Vanessa; Baptista, Sofia; Marcelino, Sandra Andreia; Paco, Maria; Rocha, Duarte; Gonçalves, Maria dos Prazeres; Azevedo, Rui; Guimarães, Antonio Sergio; Fernandes, Gustavo Vicentis Oliveira; Pinho, Teresa (2023). Occlusal changes with clear aligners and the case complexity influence: a longitudinal cohort clinical study. Journal of Clinical Medicine. eISSN 2077-0383. 12:10, p. 1-2110.3390/jcm121034352077-0383info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-29T01:18:17Zoai:bibliotecadigital.ipb.pt:10198/25316Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:19:57.284782Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Occlusal changes with clear aligners and the case complexity influence: a longitudinal cohort clinical study
title Occlusal changes with clear aligners and the case complexity influence: a longitudinal cohort clinical study
spellingShingle Occlusal changes with clear aligners and the case complexity influence: a longitudinal cohort clinical study
Marcelino, Vanessa
Clear aligners
Masticatory function
Occlusal contacts
Occlusal area
Facial biotype
title_short Occlusal changes with clear aligners and the case complexity influence: a longitudinal cohort clinical study
title_full Occlusal changes with clear aligners and the case complexity influence: a longitudinal cohort clinical study
title_fullStr Occlusal changes with clear aligners and the case complexity influence: a longitudinal cohort clinical study
title_full_unstemmed Occlusal changes with clear aligners and the case complexity influence: a longitudinal cohort clinical study
title_sort Occlusal changes with clear aligners and the case complexity influence: a longitudinal cohort clinical study
author Marcelino, Vanessa
author_facet Marcelino, Vanessa
Baptista, Sofia
Marcelino, Sandra Andreia
Paco, Maria
Rocha, Duarte
Gonçalves, Maria dos Prazeres
Azevedo, Rui
Guimarães, Antonio Sergio
Fernandes, Gustavo Vicentis Oliveira
Pinho, Teresa
author_role author
author2 Baptista, Sofia
Marcelino, Sandra Andreia
Paco, Maria
Rocha, Duarte
Gonçalves, Maria dos Prazeres
Azevedo, Rui
Guimarães, Antonio Sergio
Fernandes, Gustavo Vicentis Oliveira
Pinho, Teresa
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Marcelino, Vanessa
Baptista, Sofia
Marcelino, Sandra Andreia
Paco, Maria
Rocha, Duarte
Gonçalves, Maria dos Prazeres
Azevedo, Rui
Guimarães, Antonio Sergio
Fernandes, Gustavo Vicentis Oliveira
Pinho, Teresa
dc.subject.por.fl_str_mv Clear aligners
Masticatory function
Occlusal contacts
Occlusal area
Facial biotype
topic Clear aligners
Masticatory function
Occlusal contacts
Occlusal area
Facial biotype
description Background: Clear aligners (CA) are used 22 h daily, creating a bite-block effect. This work aims to (i) analyze occlusal changes before the beginning of treatment, after the first set of CA and after the use of additional aligners; (ii) compare planned occlusal contacts with the ones obtained after the first set of CA; (iii) analyze the occlusal changes occurred after reaching the orthodontic goals after 3 months of using CA only at night; (iv) evaluate and characterize which tooth movements did not allow the treatment to be completed at the end of the first set of aligners, and finally (v) verify the possible relation between the changes in occlusal contact and areas and parameters such as case complexity and facial biotype. Materials and Methods: A quantitative, comparative, and observational longitudinal cohort study design was implemented to evaluate the clinical data and the complexity levels of cases receiving CA. A non-probabilistic and convenience sample of 82 individuals was recruited. The orthodontic malocclusion traits were classified as simple, moderate, or complex corrections based on the basis of the Align((R)) recommendations with the Invisalign((R)) evaluation tool. According to the Invisalign((R)) criteria, patients need only one complex problem for their case to be classified as complex. Meshlab((R)) v. 2022.02, ClinCheck((R)) version Pro 6.0, My-Itero((R)) version 2.7.9.601 5d plus, and IBM (R) SPSS Statistics software (Statistical Program for Social Sciences), version 27.0 for Windows were the software((R)) used. Results: A statistically significant decrease in area and occlusal contacts number were observed from before the start of orthodontic treatment (T0) to the end of treatment (T1). The changes in the occlusal area (from T0 to T1) were statistically different between hyperdivergent (28.24 [15.51-40.91]) and hypodivergent (16.23 [8.11-24.97]) biotypes (p = 0.031). A significant difference between the hyperdivergent (4.0 [2.0-5.0]) and normodivergent (5.5 [4.0-8.0]) group was found in T1 for the anterior contacts (p = 0.044). Anterior contacts obtained were significantly higher than the planned (p = 0.037) Between T1 and T2 statistically significant increases of occlusal areas, posterior and total contacts were observed. Conclusions: Occlusal contact and area were decreased, either at the end of the first set or after the use of additional aligners. Anterior occlusal contacts obtained were higher than planned as opposed to posterior occlusal contacts obtained. The hardest tooth movements to achieve to complete the treatment were distalization, rotation, and posterior extrusion. After completing orthodontic treatment (T1) to 3 months after (T2) using additional aligners only at night, posterior occlusal contacts were significantly increased, which could be due to the natural settling of the teeth in this period.
publishDate 2022
dc.date.none.fl_str_mv 2022-04-04T08:32:22Z
2023
2023-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10198/25316
url http://hdl.handle.net/10198/25316
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Marcelino, Vanessa; Baptista, Sofia; Marcelino, Sandra Andreia; Paco, Maria; Rocha, Duarte; Gonçalves, Maria dos Prazeres; Azevedo, Rui; Guimarães, Antonio Sergio; Fernandes, Gustavo Vicentis Oliveira; Pinho, Teresa (2023). Occlusal changes with clear aligners and the case complexity influence: a longitudinal cohort clinical study. Journal of Clinical Medicine. eISSN 2077-0383. 12:10, p. 1-21
10.3390/jcm12103435
2077-0383
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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dc.publisher.none.fl_str_mv MDPI
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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