SEM photomicrographs of Filtek Z250 before and after immersion in various storage media for 3 and 7 days (x600 magnification). A- Before immersion, B- In deionized water for 3 days, C- In deionized water for 7 days, D- In citrate buffer solution for 3 days, E- In citrate buffer solution for 7 days, F- In green mango juice for 3 days, G- In green mango juice for 7 days, H- In pineapple juice for 3 days, I- In pineapple juice for 7 days.