Do soft drinks affect metal ions release from orthodontic appliances?

J Trace Elem Med Biol. 2015:31:74-7. doi: 10.1016/j.jtemb.2015.03.007. Epub 2015 Apr 4.

Abstract

Objective: The effect of orange juice and Coca Cola(®) on the release of metal ions from fixed orthodontic appliances.

Materials and methods: A continuous flow system designed for in vitro testing of orthodontic appliances was used. Orange juice/Coca Cola(®) was flowing through the system alternately with artificial saliva for 5.5 and 18.5h, respectively. The collected samples underwent a multielemental ICP-OES analysis in order to determine the metal ions release pattern in time.

Results: The total mass of ions released from the appliance into orange juice and Coca Cola(®) (respectively) during the experiment was calculated (μg): Ni (15.33; 37.75), Cr (3.604; 1.052), Fe (48.42; ≥ 156.1), Cu (57.87, 32.91), Mn (9.164; 41.16), Mo (9.999; 30.12), and Cd (0.5967; 2.173).

Conclusions: It was found that orange juice did not intensify the release of metal ions from orthodontic appliances, whereas Coca Cola(®) caused increased release of Ni ions.

Keywords: Artificial saliva; Coca Cola(®); Metal ions release; Orange juice; Orthodontic appliance; Stainless steel.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carbonated Beverages / adverse effects*
  • Citrus sinensis / chemistry
  • Corrosion
  • Fruit and Vegetable Juices / adverse effects
  • Heavy Metal Poisoning
  • Humans
  • Hydrogen-Ion Concentration
  • Kinetics
  • Materials Testing
  • Metals, Heavy / analysis
  • Metals, Heavy / chemistry*
  • Metals, Heavy / toxicity
  • Models, Biological*
  • Nickel / analysis
  • Nickel / chemistry
  • Nickel / toxicity
  • Orthodontic Appliances / adverse effects*
  • Poisoning / etiology
  • Poisons / analysis
  • Poisons / chemistry*
  • Poisons / toxicity
  • Poland
  • Saliva / chemistry*
  • Saliva, Artificial / chemistry
  • Solubility
  • Stainless Steel / chemistry*
  • Stainless Steel / toxicity
  • United States

Substances

  • Metals, Heavy
  • Poisons
  • Saliva, Artificial
  • Stainless Steel
  • Nickel