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Brazilian Journal of Oral Sciences
Piracicaba Dental School - UNICAMP
EISSN:
Vol. 13, No. 4, 2014, pp. 266-269
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Bioline Code: os14050
Full paper language: English
Document type: Research Article
Document available free of charge
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Brazilian Journal of Oral Sciences, Vol. 13, No. 4, 2014, pp. 266-269
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Force decay in orthodontic elastomeric chains after immersion in disinfection solutions
Losito, Karina Andréa Branco; Lucato, Adriana Simoni; Tubel, Carlos Alberto Malanconi; Correa, Cristian Alexandre & dos Santos, Julio Cesar Bentos
Abstract
Aim: To evaluate the force decay of orthodontic elastomeric chains after immersion in disinfecting
solutions. Methods: One-hundred and fifty segments of elastomeric chains were divided in 3
groups: Control group – no disinfection; Chlorhexidine group - disinfection in 0.12% chlorhexidine
digluconate solution; and Peracetic acid group - disinfection in 0.2% peracetic acid solution.
Elastomeric chains of 14 mm were stretched up to 20 mm and the given force (kgf) was evaluated
in an Instron universal testing machine at the following intervals: 1 h, 1 day, 7, 14, 21 and 28 days
after the immersion in the disinfecting solutions. Data (kgf) were analyzed statistically by Analysis
of Variance and Tukey’s test at a 5% significance level. Results: Both groups presented similar
force decay along 7 days and remained stable up to 28 days. Force degradation was observed
in the first hours of activation (~50%). Conclusions: It may be concluded that there were no
significant differences among the investigated groups, in most interval times, indicating that both
chemical solutions can be used for previous disinfection of orthodontic elastomeric chains.
Keywords
orthodontic space closure; disinfection; chlorhexidine; peracetic acid
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