Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Moga, Radu Andrei, Olteanu, Cristian Doru, Botez, Mircea Daniel, Buru, Stefan Marius
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
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
_version_ 1785048800425934848
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
work_keys_str_mv AT mogaraduandrei assessmentoftheorthodonticexternalresorptioninperiodontalbreakdownafiniteelementsanalysisparti
AT olteanucristiandoru assessmentoftheorthodonticexternalresorptioninperiodontalbreakdownafiniteelementsanalysisparti
AT botezmirceadaniel assessmentoftheorthodonticexternalresorptioninperiodontalbreakdownafiniteelementsanalysisparti
AT burustefanmarius assessmentoftheorthodonticexternalresorptioninperiodontalbreakdownafiniteelementsanalysisparti