Evaluation of stress changes in the maxilla with fixed functional appliances-A 3D FEM study.
Finite element analysis
fixed functional appliance
maxilla
Journal
Journal of orthodontic science
ISSN: 2278-1897
Titre abrégé: J Orthod Sci
Pays: India
ID NLM: 101623468
Informations de publication
Date de publication:
2021
2021
Historique:
received:
20
06
2020
revised:
07
08
2020
accepted:
26
02
2021
entrez:
27
9
2021
pubmed:
28
9
2021
medline:
28
9
2021
Statut:
epublish
Résumé
To evaluate the stress changes in the maxilla during fixed functional appliance use using three-dimensional finite element method (FEM) stress analysis. A three-dimensional finite element model of the maxilla was constructed using the images generated from the cone-beam computed tomography of a patient treated for Class II malocclusion with a fixed functional orthodontic appliance. The FEM was used to study the stress changes seen in the maxilla, which were evaluated in the form of highest von Mises stress and maximum principal stress before and after the application of fixed functional appliance. Higher areas of stress were seen in the model of the maxilla with the fixed functional appliance (140 MPa) compared to that in the resting stage (58.99 MPa). An increase in the maximum principal stress and von Mises stress in the posterior regions of the maxilla and maxillary teeth was seen. The stresses seen were double than that without the appliance. A high distalization force on the maxilla was seen with the fixed functional appliance.
Identifiants
pubmed: 34568206
doi: 10.4103/jos.JOS_33_20
pii: JOS-10-10
pmc: PMC8423154
doi:
Types de publication
Journal Article
Langues
eng
Pagination
10Informations de copyright
Copyright: © 2021 Journal of Orthodontic Science.
Déclaration de conflit d'intérêts
There are no conflicts of interest.
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