In-vitro assessment of oxidative stress generated by orthodontic archwires

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
Stjepan SpaljZorana Ivankovic Buljan

Abstract

Several metals undergo redox cycling, producing free radicals and generating oxidative stress. The purpose of this study was to investigate in-vitro oxidative stress of orthodontic archwires made of various alloys. Mouse fibroblast cells L929 were exposed to 6 types of archwires, and the concentration of the oxidative stress marker 8-hydroxy-2'-deoxyguanosine in DNA was evaluated. Trypan blue dye was used in the determination of cell viability and numbers. Standard nickel-titanium archwires generated the highest oxidative stress, significantly higher than all other wires and the controls (P <0.05), and coated nickel-titanium, copper-nickel-titanium, and cobalt-chromium were lower than nickel-titanium (P <0.05), but higher than titanium-molybdenum and the negative and absolute controls (P <0.05). Titanium-molybdenum and stainless steel generated the lowest stress. Nickel-titanium induced the lowest viability, lower than the negative and absolute controls and all other wires (P <0.05) except titanium-molybdenum. Stainless steel showed the highest viability. Nickel-titanium produced the highest inhibition of cell growth, higher than all samples (P <0.05) except the positive control and cobalt-chromium. The lowest inhibition was ob...Continue Reading

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Citations

May 9, 2013·Systems Biology in Reproductive Medicine·Xiao-Wei ZhaiFeng-Jun Liu
Sep 5, 2015·Mutation Research. Genetic Toxicology and Environmental Mutagenesis·Tatiana Siqueira GonçalvesJoão Antonio Pêgas Henriques
Jun 21, 2015·Environmental Toxicology and Pharmacology·Ana Martín-CameánAna M Cameán
Feb 6, 2014·Mutation Research. Genetic Toxicology and Environmental Mutagenesis·Tatiana Siqueira GonçalvesJoão Antonio Pêgas Henriques
Mar 5, 2016·The Angle Orthodontist·Roberto RongoVincenzo D'Antò
Dec 26, 2016·Clinical & Experimental Ophthalmology·Wan Wendy WangCindy Ml Hutnik
Dec 6, 2019·The Angle Orthodontist·Alexandre Marcos BandeiraAna Paula Dias Demasi
Sep 16, 2019·Environmental Science and Pollution Research International·Mahdjoube Goldani MoghadamBorhan Mansouri
Jun 27, 2019·BioMed Research International·Vito KovacJasmina Primozic
Mar 16, 2021·Archives of Oral Biology·Jennifer Orozco-PáezDarío Méndez-Cuadro
May 8, 2018·Archives of Oral Biology·Piotr ŻukowskiDanuta Waszkiel
May 22, 2021·International orthodontics·Shabnam AjamiArezoo Mahdian

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