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Influence of changing various parameters in miniscrew-assisted rapid palatal expansion: A three-dimensional finite element analysis
OBJECTIVE: This study aimed to analyze the effect of changing various parameters of the bone-borne rapid palatal expander (RPE) using the finite element method (FEM). METHODS: In eight experimental groups, we investigated the effect of the number, position, and length of miniscrews; positional chang...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Korean Association of Orthodontists
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6533180/ https://www.ncbi.nlm.nih.gov/pubmed/31149605 http://dx.doi.org/10.4041/kjod.2019.49.3.150 |
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author | Yoon, Soungjun Lee, Dong-Yul Jung, Seok-Ki |
author_facet | Yoon, Soungjun Lee, Dong-Yul Jung, Seok-Ki |
author_sort | Yoon, Soungjun |
collection | PubMed |
description | OBJECTIVE: This study aimed to analyze the effect of changing various parameters of the bone-borne rapid palatal expander (RPE) using the finite element method (FEM). METHODS: In eight experimental groups, we investigated the effect of the number, position, and length of miniscrews; positional changes of the expander; and changes in the hook length on maxillary expansion. In finite element analysis, we compared the magnitude and distribution of stress, and the displacement changes following expansion of the bone-borne RPE. RESULTS: When we compared the number and position of miniscrews, placing miniscrews in the anterior and posterior sides was advantageous for maxillary expansion in terms of stress distribution and displacement changes. Miniscrew length did not significantly affect stress distribution and displacement changes. Furthermore, anteroposterior displacement of the expander did not significantly affect transverse maxillary expansion but had various effects on vertical changes of the maxilla. The maxilla rotated clockwise when the miniscrews were placed in the anterior region. The hook length of the expander did not show consistent results in terms of changes in stress distribution and magnitude or in displacement changes. CONCLUSIONS: The findings of this study suggest that changes in the location and length of the miniscrews and displacement of the bone-borne RPE could affect the pattern of the maxillary expansion, depending on the combination of these factors. |
format | Online Article Text |
id | pubmed-6533180 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Korean Association of Orthodontists |
record_format | MEDLINE/PubMed |
spelling | pubmed-65331802019-05-30 Influence of changing various parameters in miniscrew-assisted rapid palatal expansion: A three-dimensional finite element analysis Yoon, Soungjun Lee, Dong-Yul Jung, Seok-Ki Korean J Orthod Original Article OBJECTIVE: This study aimed to analyze the effect of changing various parameters of the bone-borne rapid palatal expander (RPE) using the finite element method (FEM). METHODS: In eight experimental groups, we investigated the effect of the number, position, and length of miniscrews; positional changes of the expander; and changes in the hook length on maxillary expansion. In finite element analysis, we compared the magnitude and distribution of stress, and the displacement changes following expansion of the bone-borne RPE. RESULTS: When we compared the number and position of miniscrews, placing miniscrews in the anterior and posterior sides was advantageous for maxillary expansion in terms of stress distribution and displacement changes. Miniscrew length did not significantly affect stress distribution and displacement changes. Furthermore, anteroposterior displacement of the expander did not significantly affect transverse maxillary expansion but had various effects on vertical changes of the maxilla. The maxilla rotated clockwise when the miniscrews were placed in the anterior region. The hook length of the expander did not show consistent results in terms of changes in stress distribution and magnitude or in displacement changes. CONCLUSIONS: The findings of this study suggest that changes in the location and length of the miniscrews and displacement of the bone-borne RPE could affect the pattern of the maxillary expansion, depending on the combination of these factors. Korean Association of Orthodontists 2019-05 2019-05-21 /pmc/articles/PMC6533180/ /pubmed/31149605 http://dx.doi.org/10.4041/kjod.2019.49.3.150 Text en © 2019 The Korean Association of Orthodontists. http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Yoon, Soungjun Lee, Dong-Yul Jung, Seok-Ki Influence of changing various parameters in miniscrew-assisted rapid palatal expansion: A three-dimensional finite element analysis |
title | Influence of changing various parameters in miniscrew-assisted rapid palatal expansion: A three-dimensional finite element analysis |
title_full | Influence of changing various parameters in miniscrew-assisted rapid palatal expansion: A three-dimensional finite element analysis |
title_fullStr | Influence of changing various parameters in miniscrew-assisted rapid palatal expansion: A three-dimensional finite element analysis |
title_full_unstemmed | Influence of changing various parameters in miniscrew-assisted rapid palatal expansion: A three-dimensional finite element analysis |
title_short | Influence of changing various parameters in miniscrew-assisted rapid palatal expansion: A three-dimensional finite element analysis |
title_sort | influence of changing various parameters in miniscrew-assisted rapid palatal expansion: a three-dimensional finite element analysis |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6533180/ https://www.ncbi.nlm.nih.gov/pubmed/31149605 http://dx.doi.org/10.4041/kjod.2019.49.3.150 |
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