Effect of friction on levelling of the maxillary canine with NiTi superelastic wire - an in silico experiment using a finite element method

Purpose To clarify the effect of friction on the levelling process using a NiTi superelastic wire, the levelling process was simulated using a finite element method.Materials and methods The maxillary right canine, which was intruded by 2 mm, was levelled using a 0.014 inch or 0.016 inch NiTi round...

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Main Authors: Rikou Miyawaki, Yukiko Yokoi
Format: Article
Language:English
Published: Taylor & Francis Group 2024-10-01
Series:Clinical and Investigative Orthodontics
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/27705781.2024.2434801
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author Rikou Miyawaki
Yukiko Yokoi
author_facet Rikou Miyawaki
Yukiko Yokoi
author_sort Rikou Miyawaki
collection DOAJ
description Purpose To clarify the effect of friction on the levelling process using a NiTi superelastic wire, the levelling process was simulated using a finite element method.Materials and methods The maxillary right canine, which was intruded by 2 mm, was levelled using a 0.014 inch or 0.016 inch NiTi round wire. The wire was supported by two fixed brackets with 0.018 × 0.025 inch slots. The canine, alveolar bone, and bracket were rigid bodies, while the periodontal ligament (PDL) was a nonlinear elastic material. Kinetic friction was caused by contact forces acting on the wire and the bracket slot. Additionally, when the wire was securely ligated to the bracket slot, a constant frictional force caused by the ligation was directly applied to the wire. As the levelling force was applied to the canine, it moved by accumulating the initial tooth movement caused by elastic deformation of the PDL.Results In the case without friction caused by ligation, although the kinetic friction decreased the levelling force during the early levelling stage, the progress of levelling remained unchanged. In the case with friction caused by ligation, as the ligation friction increased, the levelling force decreased, reducing the levelling speed. Furthermore, the levelling process was impeded when the friction caused by ligation reached a critical value.Conclusion When using passive self-ligating brackets, the friction is caused only by levelling forces, which have almost no effect. When the wire is ligated securely to the bracket, additional friction is generated, hindering the levelling process.
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institution Kabale University
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publishDate 2024-10-01
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series Clinical and Investigative Orthodontics
spelling doaj-art-f3852742b1904de294ae7890c34689c22025-01-28T04:01:17ZengTaylor & Francis GroupClinical and Investigative Orthodontics2770-57812770-579X2024-10-0183416617210.1080/27705781.2024.2434801Effect of friction on levelling of the maxillary canine with NiTi superelastic wire - an in silico experiment using a finite element methodRikou Miyawaki0Yukiko Yokoi1School of Oral Medicine, Department of Hard Tissue Research, Matsumoto Dental University, Shiojiri, JapanSchool of Oral Medicine, Department of Hard Tissue Research, Matsumoto Dental University, Shiojiri, JapanPurpose To clarify the effect of friction on the levelling process using a NiTi superelastic wire, the levelling process was simulated using a finite element method.Materials and methods The maxillary right canine, which was intruded by 2 mm, was levelled using a 0.014 inch or 0.016 inch NiTi round wire. The wire was supported by two fixed brackets with 0.018 × 0.025 inch slots. The canine, alveolar bone, and bracket were rigid bodies, while the periodontal ligament (PDL) was a nonlinear elastic material. Kinetic friction was caused by contact forces acting on the wire and the bracket slot. Additionally, when the wire was securely ligated to the bracket slot, a constant frictional force caused by the ligation was directly applied to the wire. As the levelling force was applied to the canine, it moved by accumulating the initial tooth movement caused by elastic deformation of the PDL.Results In the case without friction caused by ligation, although the kinetic friction decreased the levelling force during the early levelling stage, the progress of levelling remained unchanged. In the case with friction caused by ligation, as the ligation friction increased, the levelling force decreased, reducing the levelling speed. Furthermore, the levelling process was impeded when the friction caused by ligation reached a critical value.Conclusion When using passive self-ligating brackets, the friction is caused only by levelling forces, which have almost no effect. When the wire is ligated securely to the bracket, additional friction is generated, hindering the levelling process.https://www.tandfonline.com/doi/10.1080/27705781.2024.2434801OrthodonticsLevelingNiTi-superelastic wireFrictionfinite element method
spellingShingle Rikou Miyawaki
Yukiko Yokoi
Effect of friction on levelling of the maxillary canine with NiTi superelastic wire - an in silico experiment using a finite element method
Clinical and Investigative Orthodontics
Orthodontics
Leveling
NiTi-superelastic wire
Friction
finite element method
title Effect of friction on levelling of the maxillary canine with NiTi superelastic wire - an in silico experiment using a finite element method
title_full Effect of friction on levelling of the maxillary canine with NiTi superelastic wire - an in silico experiment using a finite element method
title_fullStr Effect of friction on levelling of the maxillary canine with NiTi superelastic wire - an in silico experiment using a finite element method
title_full_unstemmed Effect of friction on levelling of the maxillary canine with NiTi superelastic wire - an in silico experiment using a finite element method
title_short Effect of friction on levelling of the maxillary canine with NiTi superelastic wire - an in silico experiment using a finite element method
title_sort effect of friction on levelling of the maxillary canine with niti superelastic wire an in silico experiment using a finite element method
topic Orthodontics
Leveling
NiTi-superelastic wire
Friction
finite element method
url https://www.tandfonline.com/doi/10.1080/27705781.2024.2434801
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