Influence of constant strain on the elasticity of thermoplastic orthodontic materials

Inoue, Sayuri; Yamaguchi, Satoshi; Uyama, Hiroshi et al.

Dental Materials Journal, 2020, 39(3), 415-421

Number of Access:696（2025-08-14 15:06 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/93091

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Title
Influence of constant strain on the elasticity of thermoplastic orthodontic materials
Creator
CreatorName
Inoue, Sayuri
NRID
1000030397773 1000030397773
ORCID
0000-0002-4661-8821 0000-0002-4661-8821
researchmap permalink
YamaguchiS_30397773 YamaguchiS_30397773
Scopus Author ID
7403873463 7403873463
CreatorName
Yamaguchi, Satoshi
NRID
1000070203594 1000070203594
researchmap permalink
read0168389 read0168389
Scopus Author ID
7102108908 7102108908
ORCID
0000-0002-8587-2507 0000-0002-8587-2507
CreatorName
Uyama, Hiroshi
NRID
1000070294428 1000070294428
ORCID
0000-0002-4419-9643 0000-0002-4419-9643
researchmap permalink
read0051793 read0051793
Scopus Author ID
55416765600 55416765600
CreatorName
Yamashiro, Takashi
NRID
1000080243244 1000080243244
ORCID
0000-0003-3655-4809 0000-0003-3655-4809
researchmap permalink
read0014210 read0014210
Scopus Author ID
55994423600 55994423600
CreatorName
Imazato, Satoshi
Subject
Aligner
Elastic modulus
Orthodontic force
Thermoplastics
Description
Inoue S., Yamaguchi S., Uyama H., et al. Influence of constant strain on the elasticity of thermoplastic orthodontic materials. Dental Materials Journal 39, 415 (2020); https://doi.org/10.4012/dmj.2019-104.
Abstract
The aim of this study was to identify a physical property suitable for evaluating the orthodontic force by analyzing the physical properties of thermoplastic materials. Four thermoplastic materials were used: Essix A+® Plastic (EA), DURAN® (DU), Erkodur (ER), and Essix C+® Plastic (EC). Finite element analysis (FEA), a water absorption test, constant strain loading test, X-ray diffraction (XRD) and Fourier transformation infrared spectroscopy analysis were conducted. FEA found a significant correlation between the elastic modulus and the orthodontic force. The water absorption of EC was significantly smaller than the other materials. EC showed no elastic modulus change. The XRD pattern indicated that EC was a crystalline polymer. FEA of thermoplastics showed that the elastic modulus is suitable for the evaluation of orthodontic force. The crystalline thermoplastic EC demonstrated a stable elastic modulus even under strain in a wet environment, suggesting the advantage of its use as an orthodontic aligner material.
Publisher
Japanese Society for Dental Materials and Devices
日本歯科理工学会
Source Title
Dental Materials Journal
Volume (Issue)
39(3)
Page
415-421
Date of Issued
2020-01-01
Language
English
Handle URL
https://hdl.handle.net/11094/93091
PISSN
02874547
eISSN
18811361
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.4012/dmj.2019-104
Access Rights
open access
CopyRight
© 2020, Japanese Society for Dental Materials and Devices. All rights reserved.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article