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Rivista di Odontostomatologia e Chirurgia Maxillo-Facciale


Official Journal of the Italian Society of Odontostomatology and Maxillofacial Surgery
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Minerva Stomatologica 2016 October;65(5):284-90

Copyright © 2016 EDIZIONI MINERVA MEDICA

lingua: Inglese

Comparative analysis of force degradation of latex orthodontic elastics of 5/16’’ diameter: an in vitro study

Sionara SEIBT 1, Igor SALMORIA 1, Graziela O. CERICATO 2, Luiz R. PARANHOS 3, Henrique D. ROSARIO 1, Ossam EL HAJE 1

1 Department of Dentistry, FUNORTE/SOEBRAS, Passo Fundo, Brazil; 2 Dentistry School, Meridional College (IMED), Passo Fundo, Brazil; 3 Department of Dentistry, Federal University of Sergipe, Lagarto, Brazil


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BACKGROUND: This study aimed to analyze six commercial brands of latex elastics regarding force degradation based on the time factor, in time intervals of 12, 24, 48, and 72 hours.
METHODS: The elastics were stretched by three times their diameter, measured, immersed in artificial saliva at 37° C, and stored in a glass container. Data obtained were described by mean parameters, standard deviation, degradation rate, and coefficient of variation and Tukey’s post-hoc Test (P<0.05).
RESULTS: American Orthodontics™ was the brand closest to prescription (94.70%), and Uniden™ was the one with the lowest performance (73.60%). By analyzing the total force degradation rate at the end of the experiment, it is noted that elastics from the Orthometric™ brand presented the highest rate (20.24%).
CONCLUSIONS: It is concluded that the latex elastics studied suffer great intensity variation of initial force, and the higher variation rate occurs in the first 12 hours.

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graziela.cericato@imed.edu.br