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Volume 8 Issue 3 (March, 2020)

Original Articles

Analysis of nickel and chromium concentration in the GCF of patients undergoing fixed orthodontic treatment
Neha Chandel, Prabhat Mandhotra

Background: Fixed orthodontic appliances usually include brackets, bands, arch wires, and springs. They are made of stainless steel, nickel–titanium, or nickel-cobalt alloys. In orthodontic practice, it is essential to know the exact amount of each ion released during the course of treatment, and inform the patient undergoing orthodontic treatment in this respect. Hence; the present study was undertaken for analysing nickel and chromium concentration in the GCF of patients undergoing fixed orthodontics treatment. Materials & methods: A total of 20 patients scheduled to undergo fixed orthodontic treatment were enrolled in the present study. Complete demographic and clinical details of all the patients were obtained. Pre-treatment clinical examination of all the patients was carried out. GCF samples were obtained during the pre-treatment phase using micropipettes. Study casts were made and treatment planning was done. Fixed orthodontic treatment was started. Patients were recalled on follow-up at every 30 day interval. GCF samples were again taken at 30 days after starting of the treatment and at 150 days after starting of the treatment. Auto-analyser was used for assessment of GCF nickel and chromium levels. Results: Mean Nickel concentration at baseline, at 30 day follow-up and at 150 day follow-up was found to be 3.1 µg/gm of GCF, 4.8 µg/gm of GCF and 12.1 µg/gm of GCF respectively. Mean chromium concentration at baseline, at 30 day follow-up and at 150 day follow-up was found to be 3.9 µg/gm of GCF, 4.7 µg/gm of GCF and 16.3 µg/gm of GCF respectively. A significant increase in GCF concentrations of nickel and chromium were seen at different successive follow-ups in patients undergoing fixed orthodontic treatment. Conclusion: In patients undergoing fixed orthodontic treatment, there is considerable increase in GCF concentrations of nickel and chromium. Key words: Nickel, Chromium

 
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