Comparing the elastomeric behavior and force degradation pattern between different orthodontic elastomeric chains
Background and Aims: Elastomeric chains are known as a current device with the purpose of dental movement in orthodontic treatments. The aim of this study was to compare the elastomeric behavior and force degradation rate between different elastomeric chains existing in Iran in different time durati...
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Tehran University of Medical Sciences
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doaj-6a3ec4a4684649018e95f81153469bcc2020-11-25T04:04:37ZfasTehran University of Medical SciencesJournal of Dental Medicine1024-641X2008-24442020-08-013315462Comparing the elastomeric behavior and force degradation pattern between different orthodontic elastomeric chainsAli Mohammad-Hoseini0Maryam Pirmoradian Najafabadi1Gholamreza Eslami Amirabadi2Mehdi Aragh Bidi Kashani3 Orthodontist, School of Dentistry, Shahed University, Tehran, Iran Ph.D Candidate, Department of Dental Biomaterials, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran Assistant Professor, Department of Orthodontic, School of Dentistry, Shahed University, Tehran, Iran Assistant Professor, Department of Orthodontic, School of Dentistry, Shahed University, Tehran, Iran Background and Aims: Elastomeric chains are known as a current device with the purpose of dental movement in orthodontic treatments. The aim of this study was to compare the elastomeric behavior and force degradation rate between different elastomeric chains existing in Iran in different time durations. Materials and Methods: 11 different elastomeric chains used in this study were: Class One, ASTAR, G&H, TSNPT, MIB (French and Chinese type), Ultra Chain and both American, Ortho Technology (simple and memory type). All chains were stretched upon to exert 150 g force and then force degradation rate in 6 time duration (1, 3, 24 hours and 3, 7, 21 days) and modulus of elasticity (MOE) in 2 time duration (start and 21 days) were investigated. All Data were analyzed statistically by ANOVA, Tukey, Games-Howel tests. Results: All chains up to the 21th day showed a significant decrease in MOE except for the G&H, ClassOne, simple orthotechnology and a significant force degradation except for the American (memory type). The most significant force degradation rate was in ASTAR gray (P<0.05) and the least in MIB (French), Ultra Chain, and American (P<0.05). Conclusion: All chains showed significant time-dependent force degradation (mostly in the first day). Only, this rate was not significant in any time duration for the American (memory). In all groups, the most force degradation rate belonged to ASTAR gray and the least to Ultra Chain, MIB (French) and American after 21th day.http://jdm.tums.ac.ir/article-1-5986-en.htmlelastomeric chainforce degradationmodulus of elasticity |
collection |
DOAJ |
language |
fas |
format |
Article |
sources |
DOAJ |
author |
Ali Mohammad-Hoseini Maryam Pirmoradian Najafabadi Gholamreza Eslami Amirabadi Mehdi Aragh Bidi Kashani |
spellingShingle |
Ali Mohammad-Hoseini Maryam Pirmoradian Najafabadi Gholamreza Eslami Amirabadi Mehdi Aragh Bidi Kashani Comparing the elastomeric behavior and force degradation pattern between different orthodontic elastomeric chains Journal of Dental Medicine elastomeric chain force degradation modulus of elasticity |
author_facet |
Ali Mohammad-Hoseini Maryam Pirmoradian Najafabadi Gholamreza Eslami Amirabadi Mehdi Aragh Bidi Kashani |
author_sort |
Ali Mohammad-Hoseini |
title |
Comparing the elastomeric behavior and force degradation pattern between different orthodontic elastomeric chains |
title_short |
Comparing the elastomeric behavior and force degradation pattern between different orthodontic elastomeric chains |
title_full |
Comparing the elastomeric behavior and force degradation pattern between different orthodontic elastomeric chains |
title_fullStr |
Comparing the elastomeric behavior and force degradation pattern between different orthodontic elastomeric chains |
title_full_unstemmed |
Comparing the elastomeric behavior and force degradation pattern between different orthodontic elastomeric chains |
title_sort |
comparing the elastomeric behavior and force degradation pattern between different orthodontic elastomeric chains |
publisher |
Tehran University of Medical Sciences |
series |
Journal of Dental Medicine |
issn |
1024-641X 2008-2444 |
publishDate |
2020-08-01 |
description |
Background and Aims: Elastomeric chains are known as a current device with the purpose of dental movement in orthodontic treatments. The aim of this study was to compare the elastomeric behavior and force degradation rate between different elastomeric chains existing in Iran in different time durations.
Materials and Methods: 11 different elastomeric chains used in this study were: Class One, ASTAR, G&H, TSNPT, MIB (French and Chinese type), Ultra Chain and both American, Ortho Technology (simple and memory type). All chains were stretched upon to exert 150 g force and then force degradation rate in 6 time duration
(1, 3, 24 hours and 3, 7, 21 days) and modulus of elasticity (MOE) in 2 time duration (start and 21 days) were investigated. All Data were analyzed statistically by ANOVA, Tukey, Games-Howel tests.
Results: All chains up to the 21th day showed a significant decrease in MOE except for the G&H, ClassOne, simple orthotechnology and a significant force degradation except for the American (memory type). The most significant force degradation rate was in ASTAR gray (P<0.05) and the least in MIB (French), Ultra Chain, and American (P<0.05).
Conclusion: All chains showed significant time-dependent force degradation (mostly in the first day). Only, this rate was not significant in any time duration for the American (memory). In all groups, the most force degradation rate belonged to ASTAR gray and the least to Ultra Chain, MIB (French) and American after 21th day. |
topic |
elastomeric chain force degradation modulus of elasticity |
url |
http://jdm.tums.ac.ir/article-1-5986-en.html |
work_keys_str_mv |
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