Nickel and chromium levels in the saliva and serum of patients with fixed orthodontic appliances

The Angle Orthodontist
G AğaoğluB Izgü

Abstract

The aim of this study was to evaluate the concentrations of nickel and chromium ions in salivary and serum samples from patients treated with fixed orthodontic appliances. A second aim of this study was to determine any significant changes in these concentrations during any period of the treatment time. Saliva and blood samples were collected from 100 patients ranging in age from 12 to 33 years. Twenty samples from each group were obtained. The groups were as follows: In the first group, saliva and blood samples were collected before insertion of the fixed appliances. In the second, third, fourth, and fifth groups, samples were collected at 1 week, 1 month, 1 year, and 2 years after appliance insertion. The serum was prepared by centrifuging the blood samples at 3000 rpm for 10 minutes. The fixed appliances consisted of an average of 4 bands and 20 bonded brackets. No palatal or lingual appliances welded to bands or extraoral auxiliary appliances were used. The spectrophotometric determinations were carried out using electrothermal atomic absorption spectrophotometry. The results indicated certain differences in the amounts of nickel and chromium released from fixed orthodontic appliances during different periods of treatment. ...Continue Reading

Citations

Jan 11, 2012·Journal of Applied Oral Science : Revista FOB·Cristhiane Ristum BagatinJosé Tarcísio Lima Ferreira
Apr 20, 2019·Environmental Science and Pollution Research International·Masoud MohammadtaheriQiaoqin Yang

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