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Assessment of the Orthodontic External Resorption in Periodontal Breakdown—A Finite Elements Analysis (Part I)
This Finite Elements Analysis (FEA) assessed the accuracy of Tresca failure criteria (maximum shear stress) for the study of external root resorption. Additionally, the tooth absorption–dissipation ability was assessed. Overall, 81 models of the second mandibular premolar, out of a total of 324 simu...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10218551/ https://www.ncbi.nlm.nih.gov/pubmed/37239733 http://dx.doi.org/10.3390/healthcare11101447 |
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author | Moga, Radu Andrei Olteanu, Cristian Doru Botez, Mircea Daniel Buru, Stefan Marius |
author_facet | Moga, Radu Andrei Olteanu, Cristian Doru Botez, Mircea Daniel Buru, Stefan Marius |
author_sort | Moga, Radu Andrei |
collection | PubMed |
description | This Finite Elements Analysis (FEA) assessed the accuracy of Tresca failure criteria (maximum shear stress) for the study of external root resorption. Additionally, the tooth absorption–dissipation ability was assessed. Overall, 81 models of the second mandibular premolar, out of a total of 324 simulations, were involved. Five orthodontic movements (intrusion, extrusion, rotation, translation, and tipping) were simulated under 0.6 N and 1.2 N in a horizontal progressive periodontal breakdown simulation of 0–8 mm. In all simulations, Tresca criteria accurately displayed the localized areas of maximum stress prone to external resorption risks, seeming to be adequate for the study of the resorptive process. The localized areas were better displayed in the radicular dentine–cementum component than in the entire tooth structure. The rotation and translation seem prone to a higher risk of external root resorption after 4 mm of loss. The resorptive risks seem to increase along with the progression of periodontal breakdown if the same amount of applied force is guarded. The localized resorption-prone areas follow the progression of bone loss. The two light forces displayed similar extensions of maximum stress areas. The stress displayed in the coronal dentine decreases along with the progression of bone loss. The absorption–dissipation ability of the tooth is about 87.99–97.99% of the stress. |
format | Online Article Text |
id | pubmed-10218551 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-102185512023-05-27 Assessment of the Orthodontic External Resorption in Periodontal Breakdown—A Finite Elements Analysis (Part I) Moga, Radu Andrei Olteanu, Cristian Doru Botez, Mircea Daniel Buru, Stefan Marius Healthcare (Basel) Article This Finite Elements Analysis (FEA) assessed the accuracy of Tresca failure criteria (maximum shear stress) for the study of external root resorption. Additionally, the tooth absorption–dissipation ability was assessed. Overall, 81 models of the second mandibular premolar, out of a total of 324 simulations, were involved. Five orthodontic movements (intrusion, extrusion, rotation, translation, and tipping) were simulated under 0.6 N and 1.2 N in a horizontal progressive periodontal breakdown simulation of 0–8 mm. In all simulations, Tresca criteria accurately displayed the localized areas of maximum stress prone to external resorption risks, seeming to be adequate for the study of the resorptive process. The localized areas were better displayed in the radicular dentine–cementum component than in the entire tooth structure. The rotation and translation seem prone to a higher risk of external root resorption after 4 mm of loss. The resorptive risks seem to increase along with the progression of periodontal breakdown if the same amount of applied force is guarded. The localized resorption-prone areas follow the progression of bone loss. The two light forces displayed similar extensions of maximum stress areas. The stress displayed in the coronal dentine decreases along with the progression of bone loss. The absorption–dissipation ability of the tooth is about 87.99–97.99% of the stress. MDPI 2023-05-16 /pmc/articles/PMC10218551/ /pubmed/37239733 http://dx.doi.org/10.3390/healthcare11101447 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Moga, Radu Andrei Olteanu, Cristian Doru Botez, Mircea Daniel Buru, Stefan Marius Assessment of the Orthodontic External Resorption in Periodontal Breakdown—A Finite Elements Analysis (Part I) |
title | Assessment of the Orthodontic External Resorption in Periodontal Breakdown—A Finite Elements Analysis (Part I) |
title_full | Assessment of the Orthodontic External Resorption in Periodontal Breakdown—A Finite Elements Analysis (Part I) |
title_fullStr | Assessment of the Orthodontic External Resorption in Periodontal Breakdown—A Finite Elements Analysis (Part I) |
title_full_unstemmed | Assessment of the Orthodontic External Resorption in Periodontal Breakdown—A Finite Elements Analysis (Part I) |
title_short | Assessment of the Orthodontic External Resorption in Periodontal Breakdown—A Finite Elements Analysis (Part I) |
title_sort | assessment of the orthodontic external resorption in periodontal breakdown—a finite elements analysis (part i) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10218551/ https://www.ncbi.nlm.nih.gov/pubmed/37239733 http://dx.doi.org/10.3390/healthcare11101447 |
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