Fluoride release from newly formulated resin-modified and conventional glass ionomer cements

S.Al-Ameer, Shatha; S.Rahmatallah, Saad; R. Hadi, Monadle

	Fluoride release from newly formulated resin-modified and conventional glass ionomer cements
Journal of baghdad college of dentistry
Article 1, Volume 22, Issue 4, 2010, Pages 32-35
Authors
Shatha S.Al-Ameer; Saad S.Rahmatallah; Monadle R. Hadi
Abstract
ABSTRACTBackground: Glass ionomer cement has been used as a restorative material for its chemical bonding to toothstructure and fluoride release to the surrounding tooth structure. The aim of this study was to see if increasing thefluoride contents in the cement powder increases the amounts of fluoride released from the set cement.Materials and Methods: Two types of cements were prepared with increased fluoride contents: cement (1) as lightcuredresin-modified and cement (2) as chemical-cured conventional glass ionomer cements. Two commercialcements were used for comparison, cement (3) was light-cured (Vivaglass), and cement (4) was chemically-cured(Nikang). Five specimens for each type of cement were used as discs of 6mm diameter × 3mm height. Thespecimens were immersed in artificial saliva solution for 1 day, 1week, 2 weeks, 1 month and 2 months. The amountof fluoride ions released in the saliva solution was then measured using fluoride ion specific electrode connected toan ion- analyzer.Results: The experimental cements (1 and 2) showed increased amounts of fluoride release than commercialcements (3 and 4). The total amount of fluoride release from the resin-modified cement (1) was more than that ofconventional cement (2) through the time of test.Conclusion: Fluoride release of prepared cements was higher than that of commercial cements. Increasing fluoridecontents within the cement formula led to increased fluoride release of the set cement.Key words: Fluoride, resin, glass ionomer cement. (J Bagh Coll Dentistry 2010;22(4):32-35).

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