title: Effect of Children's Drinks on Color Stability of Different Dental Composites: An in vitro Study.
abstract: OBJECTIVE
  To assess the effect of four different children's drinks on color stability of resin dental composites.
  
  
  METHODS
  A total of one hundred and twenty specimens were prepared from Grandio SO, Filtek Z350 XT and Filtek Z250 XT (forty specimens each). Specimens were thermocycled, then each group was further subdivided into four subgroups (n=10) according to the immersion media which were chocolate milk, mango juice, orange fizzy drink, and water (control). The initial color parameters of each specimen were recorded before immersion (baseline) and color change values were recorded three and seven days after immersion in each solution using a digital spectrophotometer. Atomic force microscope was used to measure the surface roughness in randomly selected samples after one week immersion in children's drinks.
  
  
  RESULTS
  All the children's drinks produced color changes in the examined resin dental composites, yet there was no statistical significant difference between the effects of tested drinks on the color changes (mean ΔE) of the three different dental composites (P>0.05).
  
  
  CONCLUSIONS
  All tested children's drinks caused clinically unacceptable color changes of the tested resin dental composites. Immersion in chocolate milk and orange fizzy led to the highest color changes in the tested resin dental composites.
authors.forename: Ahmed Nour El-Din Ahmed
authors.initials: AN
authors.lastname: Habib
authors.forename: Soad Abdelmoniem
authors.initials: SA
authors.lastname: Abdelmoniem
authors.forename: Sara Ahmed
authors.initials: SA
authors.lastname: Mahmoud
mesh_terms: D001628:Beverages; D003116:Color; D003188:Composite Resins / Q000737:chemistry*; D006801:Humans; D013053:Spectrophotometry; D013499:Surface Properties
chemical_list: D003188:Composite Resins
keywords: Children's drinks; Color stability; Dental composites