Fanar Turki A.Al-Jadwaa¹, Moataz GH. Saadallah \ Al-Shaekh Ali.¹, Amer A. Taqa^2,

Objective: The present study aimed to measure the fluoride released from composite resins stored in different beverages. Materials and Methods: Three composite resins (Te-Econom, Tetric ceram, and VOCO) were used. Twenty specimens for each composite resin were prepared according to the manufacturer instructions, and were divided into four groups (The first group were stowed in deionized water, the second group were stowed in orange juice, the third group were stowed in Pepsi Cola while the last group were stowed in coffee without sugure). The storage solutions were replaced after 7, 15 and 30 days and fluoride release (FR) at the end of each storage period was measured by "fluoride ion selective electrode". Results: One way analysis and Duncan test were used to statistically analyze the data. The amount of FR from the tested materials was significantly higher in orange juice (at day 15) than the amount of fluoride released in coffee and Pepsi Cola. The amount of fluoride released from the tested materials was significantly higher in Pepsi cola (at day 7) than the amount of fluoride released in orange and Pepsi cola. Conclusion: The ability of restorative dental materials to slowly release fluoride ions may provide a positive advantage in terms of recurrent caries inhibition.

storage media, fluoride release, composite resin