Journal of AdvancedMedical and Dental Sciences Research

Aim: The purpose of this study was to investigate the release of fluoride ions by different dental restorative materials and to compare their fluoride uptake after application of topical fluoride agents: APF gel and NaF gel. Material & Methods: The samples(5 mm in diameter x 2 mm in height)total 20 specimens of two fluoride releasing dental restorative materials were fabricated according to the manufacturer’s instructions and were randomly divided into two groups. These specimens were immersed in 10 ml of artificial saliva and the amount of fluoride released was measured on 1st (24 hrs), 3rd, 7th & 14th day. On 14th day all the specimens of each group were divided into two sub- groups of 5 specimens each and placed in 2ml of APF gel & 2ml of NaF gel for 4 minutes for recharge of these materials and again the release of fluoride from recharged specimens was estimated. Result: The fluoride released from the various materials was significantly different. The higher release was shown by thepolyacid modified composite (compomer) then Giomer. Key words: Fluoride; giomer; polyacid modified composite.