title: Effect of commonly used beverage, soft drink, and mouthwash on force delivered by elastomeric chain: a comparative in vitro study.
abstract: BACKGROUND
  The objective was to evaluate and compare the effect of Coca-Cola®, tea, Listerine® mouthwash on the force delivered by elastomeric chain in vitro.
  
  
  METHODS
  Four specimen groups (distilled water, Coca-Cola®, tea, Listerine® mouthwash) with a total sample size of 480 specimens. A specimen is described as a four link grey close elastomeric chain. Jigs, each with a series of pins set 25 mm apart, was used to hold stretched elastomeric chains at a constant length. These jigs allowed for complete submersion of the elastomeric chain in a water bath throughout the test period, as well as the dipping of elastomeric chains in respective control and test solutions. For 60 s, twice a day, groups were exposed to the respective solutions, the two daily exposure was separated by 9 h and force measurements were taken at six time points during the experiment, that is, 1 h, 24 h, 7 days, 14 days, 21 days, and 28 days. Force measurements were made by Instron machine by a single blinded examiner with the help of a second examiner.
  
  
  RESULTS
  It was found out that there was highly significant difference between groups control, Coca-Cola®, Listerine®, and tea as well as there was highly significant (p < 0.01) between time periods. Group versus time was also highly significant (p < 0.01). For all groups substantial amount of force decay occurred until 7 days. The control group reached plateau between 7 and 14 days and then suddenly decreased from 14 days to 28 days. The Coca-Cola® and the Listerine® group reached a plateau between 7 and 21 days then decrease between 21 and 28 days. The tea group showed plateau phase between 7 and 28 days. After 28 days in the control group, 25% force decay occurred while the test groups force decay of 30-50% occurred.
  
  
  CONCLUSIONS
  Coca-Cola®, Listerine® mouthwash, and tea cause an increase in force decay of elastomeric chains over time. Tea caused highest force decay followed by Listerine® and Coca-Cola® when compared to control group. How to cite the article: Kumar K, Shetty S, Krithika MJ, Cyriac B. Effect of commonly used beverage, soft drink, and mouthwash on force delivered by elastomeric chain: A comparative in vitro study. J Int Oral Health 2014;6(3):7-10.
authors.affiliation: Department of Orthodontics, KVG Dental College, Sullia, Karnataka, India.
authors.forename: Kiran
authors.initials: K
authors.lastname: Kumar
authors.affiliation: Department of Orthodontics, KVG Dental College, Sullia, Karnataka, India.
authors.forename: Sharath
authors.initials: S
authors.lastname: Shetty
authors.affiliation: Department of Orthodontics, KVG Dental College, Sullia, Karnataka, India.
authors.forename: M J
authors.initials: MJ
authors.lastname: Krithika
authors.affiliation: Department of Orthodontics, KVG Dental College, Sullia, Karnataka, India.
authors.forename: Bobby
authors.initials: B
authors.lastname: Cyriac
keywords: Beverage; elastomeric chains; force decay; mouthwash
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