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Long-term pharyngeal airway changes after bionator treatment in adolescents with skeletal Class II malocclusions
OBJECTIVE: The aim of this study was to evaluate long-term changes in the pharyngeal airway dimensions after functional appliance treatment in adolescents with skeletal Class II malocclusions. METHODS: Pharyngeal airway dimensions were compared between subjects with skeletal Class II malocclusions (...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Korean Association of Orthodontists
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3915171/ https://www.ncbi.nlm.nih.gov/pubmed/24511511 http://dx.doi.org/10.4041/kjod.2014.44.1.13 |
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author | Han, Seimin Choi, Yoon Jeong Chung, Chooryung J. Kim, Ji Young Kim, Kyung-Ho |
author_facet | Han, Seimin Choi, Yoon Jeong Chung, Chooryung J. Kim, Ji Young Kim, Kyung-Ho |
author_sort | Han, Seimin |
collection | PubMed |
description | OBJECTIVE: The aim of this study was to evaluate long-term changes in the pharyngeal airway dimensions after functional appliance treatment in adolescents with skeletal Class II malocclusions. METHODS: Pharyngeal airway dimensions were compared between subjects with skeletal Class II malocclusions (n = 24; mean age: 11.6 ± 1.29 years) treated with a Class II bionator and age-matched control subjects with skeletal Class I occlusions (n = 24; mean age: 11.0 ± 1.21 years) using a series of lateral cephalograms obtained at the initial visit (T0), after treatment (T1), and at the completion of growth (T2). RESULTS: The length of the nasopharyngeal region was similar between adolescents with skeletal Class I and Class II malocclusions at all time points, while the lengths of the upper and lower oropharyngeal regions and the pharyngeal airway areas were significantly smaller in the skeletal Class II adolescents before treatment when compared to the control adolescents (p < 0.05). However, following treatment with a functional appliance, the skeletal Class II adolescents had increased pharyngeal airway dimensions, which became similar to those of the control subjects. CONCLUSIONS: Functional appliance therapy can increase the pharyngeal airway dimensions in growing adolescents with skeletal Class II malocclusions, and this effect is maintained until the completion of growth. |
format | Online Article Text |
id | pubmed-3915171 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Korean Association of Orthodontists |
record_format | MEDLINE/PubMed |
spelling | pubmed-39151712014-02-07 Long-term pharyngeal airway changes after bionator treatment in adolescents with skeletal Class II malocclusions Han, Seimin Choi, Yoon Jeong Chung, Chooryung J. Kim, Ji Young Kim, Kyung-Ho Korean J Orthod Original Article OBJECTIVE: The aim of this study was to evaluate long-term changes in the pharyngeal airway dimensions after functional appliance treatment in adolescents with skeletal Class II malocclusions. METHODS: Pharyngeal airway dimensions were compared between subjects with skeletal Class II malocclusions (n = 24; mean age: 11.6 ± 1.29 years) treated with a Class II bionator and age-matched control subjects with skeletal Class I occlusions (n = 24; mean age: 11.0 ± 1.21 years) using a series of lateral cephalograms obtained at the initial visit (T0), after treatment (T1), and at the completion of growth (T2). RESULTS: The length of the nasopharyngeal region was similar between adolescents with skeletal Class I and Class II malocclusions at all time points, while the lengths of the upper and lower oropharyngeal regions and the pharyngeal airway areas were significantly smaller in the skeletal Class II adolescents before treatment when compared to the control adolescents (p < 0.05). However, following treatment with a functional appliance, the skeletal Class II adolescents had increased pharyngeal airway dimensions, which became similar to those of the control subjects. CONCLUSIONS: Functional appliance therapy can increase the pharyngeal airway dimensions in growing adolescents with skeletal Class II malocclusions, and this effect is maintained until the completion of growth. Korean Association of Orthodontists 2014-01 2014-01-17 /pmc/articles/PMC3915171/ /pubmed/24511511 http://dx.doi.org/10.4041/kjod.2014.44.1.13 Text en © 2014 The Korean Association of Orthodontists. http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Han, Seimin Choi, Yoon Jeong Chung, Chooryung J. Kim, Ji Young Kim, Kyung-Ho Long-term pharyngeal airway changes after bionator treatment in adolescents with skeletal Class II malocclusions |
title | Long-term pharyngeal airway changes after bionator treatment in adolescents with skeletal Class II malocclusions |
title_full | Long-term pharyngeal airway changes after bionator treatment in adolescents with skeletal Class II malocclusions |
title_fullStr | Long-term pharyngeal airway changes after bionator treatment in adolescents with skeletal Class II malocclusions |
title_full_unstemmed | Long-term pharyngeal airway changes after bionator treatment in adolescents with skeletal Class II malocclusions |
title_short | Long-term pharyngeal airway changes after bionator treatment in adolescents with skeletal Class II malocclusions |
title_sort | long-term pharyngeal airway changes after bionator treatment in adolescents with skeletal class ii malocclusions |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3915171/ https://www.ncbi.nlm.nih.gov/pubmed/24511511 http://dx.doi.org/10.4041/kjod.2014.44.1.13 |
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