Stability of class II malocclusion treatment with the austro repositioner followed by fixed appliances in brachyfacial patients

One of the goals of functional-appliance devices is to modify the vertical growth pattern, solving several kinds of malocclusion. This study aimed to evaluate Class II malocclusion treatment’s stability with Austro Repositioner, followed by fixed appliances, and assess its capacity to modify vertica...

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Autores: Austro Martínez, María Dolores, Nicolás-Silvente, Ana I., Velasco-Ortega, Eugenio, Jiménez Guerra, Álvaro, Alarcón, José A.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2021
País:España
Recursos:Universidad de Sevilla (US)
Repositório:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/137818
Acesso em linha:https://hdl.handle.net/11441/137818
https://doi.org/10.3390/ijerph18189793
Access Level:Acceso aberto
Palavra-chave:Angle class II
Brachyfacial patients
Fixed functional appliance
Mandibular retrusion
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spelling Stability of class II malocclusion treatment with the austro repositioner followed by fixed appliances in brachyfacial patientsAustro Martínez, María DoloresNicolás-Silvente, Ana I.Velasco-Ortega, EugenioJiménez Guerra, ÁlvaroAlarcón, José A.Angle class IIBrachyfacial patientsFixed functional applianceMandibular retrusionOne of the goals of functional-appliance devices is to modify the vertical growth pattern, solving several kinds of malocclusion. This study aimed to evaluate Class II malocclusion treatment’s stability with Austro Repositioner, followed by fixed appliances, and assess its capacity to modify vertical dimensions in brachyfacial patients. A test group of 30 patients (16 boys and 14 girls, mean 11.9 years old) with Class II malocclusion due to mandibular retrognathism and brachyfacial pattern treated with Austro Repositioner and fixed appliance were compared to a matched untreated Class II control group of 30 patients (17 boys and 13 girls, mean age 11.7 years old). Lateral cephalograms were taken at T1 (initial records), T2 (end of treatment), and T3 (one year after treatment). Statistical comparisons were performed with a paired-sample t-test and two-sample t-tests. Significant improvements in the skeletal Class II relationship were observed in the treated group. The ANB angle decreased (4.75°), the SNB angle increased (3.92°), and the total mandibular length (Co-Pg) increased (8.18 mm) (p < 0.001). Vertical dimensions were also significantly modified, the FMA angle increased (3.94°), LAFH-distance increased (3.15 mm), and overbite decreased (3.35 mm). These changes remained stable one year after treatment. The Austro Repositioner was adequate for treating the skeletal Class II malocclusion resulting from the mandible retrusion in brachyfacial patients.MDPIEstomatología2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/137818https://doi.org/10.3390/ijerph18189793reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésInternational Journal of Environmental Research and Public Health, 18 (18), 9793.https://www.mdpi.com/1660-4601/18/18/9793/htminfo:eu-repo/semantics/openAccessoai:idus.us.es:11441/1378182026-06-17T12:51:07Z
dc.title.none.fl_str_mv Stability of class II malocclusion treatment with the austro repositioner followed by fixed appliances in brachyfacial patients
title Stability of class II malocclusion treatment with the austro repositioner followed by fixed appliances in brachyfacial patients
spellingShingle Stability of class II malocclusion treatment with the austro repositioner followed by fixed appliances in brachyfacial patients
Austro Martínez, María Dolores
Angle class II
Brachyfacial patients
Fixed functional appliance
Mandibular retrusion
title_short Stability of class II malocclusion treatment with the austro repositioner followed by fixed appliances in brachyfacial patients
title_full Stability of class II malocclusion treatment with the austro repositioner followed by fixed appliances in brachyfacial patients
title_fullStr Stability of class II malocclusion treatment with the austro repositioner followed by fixed appliances in brachyfacial patients
title_full_unstemmed Stability of class II malocclusion treatment with the austro repositioner followed by fixed appliances in brachyfacial patients
title_sort Stability of class II malocclusion treatment with the austro repositioner followed by fixed appliances in brachyfacial patients
dc.creator.none.fl_str_mv Austro Martínez, María Dolores
Nicolás-Silvente, Ana I.
Velasco-Ortega, Eugenio
Jiménez Guerra, Álvaro
Alarcón, José A.
author Austro Martínez, María Dolores
author_facet Austro Martínez, María Dolores
Nicolás-Silvente, Ana I.
Velasco-Ortega, Eugenio
Jiménez Guerra, Álvaro
Alarcón, José A.
author_role author
author2 Nicolás-Silvente, Ana I.
Velasco-Ortega, Eugenio
Jiménez Guerra, Álvaro
Alarcón, José A.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Estomatología
dc.subject.none.fl_str_mv Angle class II
Brachyfacial patients
Fixed functional appliance
Mandibular retrusion
topic Angle class II
Brachyfacial patients
Fixed functional appliance
Mandibular retrusion
description One of the goals of functional-appliance devices is to modify the vertical growth pattern, solving several kinds of malocclusion. This study aimed to evaluate Class II malocclusion treatment’s stability with Austro Repositioner, followed by fixed appliances, and assess its capacity to modify vertical dimensions in brachyfacial patients. A test group of 30 patients (16 boys and 14 girls, mean 11.9 years old) with Class II malocclusion due to mandibular retrognathism and brachyfacial pattern treated with Austro Repositioner and fixed appliance were compared to a matched untreated Class II control group of 30 patients (17 boys and 13 girls, mean age 11.7 years old). Lateral cephalograms were taken at T1 (initial records), T2 (end of treatment), and T3 (one year after treatment). Statistical comparisons were performed with a paired-sample t-test and two-sample t-tests. Significant improvements in the skeletal Class II relationship were observed in the treated group. The ANB angle decreased (4.75°), the SNB angle increased (3.92°), and the total mandibular length (Co-Pg) increased (8.18 mm) (p < 0.001). Vertical dimensions were also significantly modified, the FMA angle increased (3.94°), LAFH-distance increased (3.15 mm), and overbite decreased (3.35 mm). These changes remained stable one year after treatment. The Austro Repositioner was adequate for treating the skeletal Class II malocclusion resulting from the mandible retrusion in brachyfacial patients.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/137818
https://doi.org/10.3390/ijerph18189793
url https://hdl.handle.net/11441/137818
https://doi.org/10.3390/ijerph18189793
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv International Journal of Environmental Research and Public Health, 18 (18), 9793.
https://www.mdpi.com/1660-4601/18/18/9793/htm
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
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