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Physical properties of various brands of elastomeric chains

Other Titles
 수종의 합성 고무탄성재의 성질에 관한 연구 
Authors
 Kyung-Ho Kim  ;  Chung-Ju Hwang  ;  Sang-Jin Sung 
Citation
 Korean Journal of Orthodontics (대한치과교정학회지), Vol.27(6) : 943-954, 1997 
Journal Title
 Korean Journal of Orthodontics (대한치과교정학회지) 
ISSN
 2234-7518 
Issue Date
1997
Abstract
Forces needed for orthodontic tooth movement are obtained from various appliances such as orthodontic wires or elastic rubber. Orthodontic elastic rubber is widely used clinically, but permanent deformation and force decay may occur from the environmental changes, time of clinical use and the extent of the stertch, making the prediction of force being applied difficult. The present study examined and compared the changes in residual force between three brands of elastomertc chains (Ormco : Generation II Power Chains ; brand A, RMO : Energy-Chain ; brand B, Unitek : Alastik ; brand C) under various environmental conditions, amout of inital force, types of elastomer and the rate of extension. The characteristic physical properies of the elastomeric chains were as follows. 1. In all three brands, the residual force ratio was largest when the chains were stored in air, with no difference between water and saliva. 2. In all three brands, after 24 hours, there was no statistical difference in residual force ratio according to the initial force level. 3. In Brand A and B, the presence of filament had no correlation with the residual force ratio. In Brand C force decay was more severe when the chain contained filament. 4. In each brand, rate of extension had no effect on residual force ratio. 5. Brand B showed relatively higher residual force ratio compared to other brands.
Files in This Item:
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Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Ho(김경호) ORCID logo https://orcid.org/0000-0002-8154-2041
Hwang, Chung Ju(황충주) ORCID logo https://orcid.org/0000-0003-3024-4551
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/177872
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