1Associate Professor, Operative Dentistry Department, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
2Associate Professor, Maxillofacial Pathology Department , School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
4Professor, Phamacyothics , School of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
Background & Aims: Secondary caries is one of the most common problems in restorative dentistry. The release of flouride ions could substantially benefit the tooth enamel and neigboring dentin because flourid can combat caries. The purpose of this in vitro study was to evaluate the solubility rate and release of fluoride from tooth-colored restorative materials (Iono CID, Fuji II LC, FugiIX, FugiII Glass iomomers and Pekalite, Z100, and Maxxion composits) in acid and deionized water environment. Methods: In the present study, 6 fluoride-containing and 1 non-fluoride-containing restorative material were used. From each material, 10 specimens were prepared. The amount of fluoride released was measured for 10 weeks using a special electrode and TISAB III buffer. Water absorption and solubility in water were calculated as a percentage of primary dry weight. Data analysis was performed using SPSS software and ANOVA. Results: All materials showed the highest fluoride release rate in the first week; this rate decreased gradually. The highest fluoride release rate was observed in Fuji II LC and the highest solubility and water sorption rate in Iono CID. A significant statistical difference was observed between Pekalite composite and the other materials in terms of fluoride release in water and acid environment (P < 0.001). A significant statistical difference was observed between water absorption rate of Z100 composite and other materials in this study (P < 0.001). A significant statistical difference was observed between solubility rate of Z100 composite and Iono CID (P = 0.050). Conclusion: The results from this study showed that fluoride release, solubility, and water absorption rate depend on material type. Since, there was a significant statistical difference between light-cured glass ionomers and self-cured glass ionomers, using this material in similar conditions is recommended.
Tantbirojn D, Feigal RJ, Ko CC, Versluis A. Remineralized dentin lesions induced by glass ionomer demonstrate increased resistance to subsequent acid challenge. Quintessence Int 2006; 37(4): 273-81.
Mazzaoui SA, Burrow MF, Tyas MJ. Fluoride release from glass ionomer cements and resin composites coated with a dent in adhesive. Dent Mater 2000; 16(3): 166-71.
Itota T, Nakabo S, Torii Y, Narukami T, Doi J, Yoshiyama M. Effect of fluoride-releasing liner on demineralized dentin. Quintessence Int 2006; 37(4): 297-303.
Wiegand A, Buchalla W, Attin T. Review on fluoride-releasing restorative materials--fluoride release and uptake characteristics, antibacterial activity and influence on caries formation. Dent Mater 2007; 23(3): 343-62.
Hara AT, Queiroz CS, Freitas PM, Giannini M, Serra MC, Cury JA. Fluoride release and secondary caries inhibition by adhesive systems on root dentine. Eur J Oral Sci 2005; 113(3): 245-50.
Burke FM, Ray NJ, McConnell RJ. Fluoride-containing restorative materials. Int Dent J 2006; 56(1): 33-43.
Ariffin Z, Ngo H, McIntyre J. Enhancement of fluoride release from glass ionomer cement following a coating of silver fluoride. Aust Dent J 2006; 51(4): 328-32.
Torabzadeh H, Padisar P. Evaluation of fluoride release level from different tooth-colored restorative materials: an in vivo study. J Dent Sch Shahid Beheshti Univ Med Sci 2000; 18(2): 107-12. [In Persian].
Ghavam M, Mefahi P. Comparing fluride release in conventional glass ionomer, light-cured glass ionomer and compomers. J Dent Tehran Univ Med Sci 1998; 11(2): 56-72. [In Persian].
Yip HK, Lam WTC, Smales RJ. Fluoride release, weight loss and erosive wear of modern aesthetic restoratives. British Dental Journal 1999; 187: 265-70.
Chan WD, Yang L, Wan W, Rizkalla AS. Fluoride release from dental cements and composites: a mechanistic study. Dent Mater 2006; 22(4): 366-73.
Delbem AC, Pedrini D, Franca JG, Machado TM. Fluoride release/recharge from restorative materials--effect of fluoride gels and time. Oper Dent 2005; 30(6): 690-5.
Asmussen E, Peutzfeldt A. Long-term fluoride release from a glass ionomer cement, a compomer, and from experimental resin composites. Acta Odontol Scand 2002; 60(2): 93-7.
Nagamine M, Itota T, Torii Y, Irie M, Staninec M, Inoue K. Effect of resin-modified glass ionomer cements on secondary caries. Am J Dent 1997; 10(4): 173-8.
Rodrigues JA, Marchi GM, Serra MC, Hara AT. Visual evaluation of in vitro cariostatic effect of restorative materials associated with dentifrices. Braz Dent J 2005; 16(2): 112-8.
Yan Z, Sidhu SK, Mahmoud GA, Carrick TE, McCabe JF. Effects of temperature on the fluoride release and recharging ability of glass ionomers. Oper Dent 2007; 32(2): 138-43.
Yoda A, Nikaido T, Ikeda M, Sonoda H, Foxton RM, Tagami J. Effect of curing method and storage condition on fluoride ion release from a fluoride-releasing resin cement. Dent Mater J 2006; 25(2): 261-6.
Karantakis P, Helvatjoglou-Antoniades M, Theodoridou-Pahini S, Papadogiannis Y. Fluoride release from three glass ionomers, a compomer, and a composite resin in water, artificial saliva, and lactic acid. Oper Dent 2000; 25(1): 20-5.
Itota T, Al-Naimi OT, Carrick TE, Yoshiyama M, McCabe JF. Fluoride release and neutralizing effect by resin-based materials. Oper Dent 2005; 30(4): 522-7.
Kousari A, Mahmoodian J, Rashidian A. Fluoride release from three different types of giass- lonomer cements after exposure to acidic and neutral NaF solution. J Dent Tehran Univ Med Sci 2000; 13(3): 20-6. [In Persian].
Pamir T, Tezel H, Ozata F, Celik A. Fluoride release from esthetic restorative materials with and without adhesive. Quintessence Int 2006; 37(2): 145-50.
Toledano M, Osorio R, Osorio E, Fuentes V, Prati C, Garcia-Godoy F. Sorption and solubility of resin-based restorative dental materials. J Dent 2003; 31(1): 43-50.
Pearson GJ, Longman CM. Water sorption and solubility of resin-based materials following inadequate polymerization by a visible-light curing system. J Oral Rehabil 1989; 16(1): 57-61.
Oysaed H, Ruyter IE. Composites for use in posterior teeth: mechanical properties tested under dry and wet conditions. J Biomed Mater Res 1986; 20(2): 261-71.
Martin N, Jedynakiewicz N. Measurement of water sorption in dental composites. Biomaterials 1998; 19(1-3): 77-83.
Nicholson JW, Anstice HM, McLean JW. A preliminary report on the effect of storage in water on the properties of commercial light-cured glass-ionomer cements. Br Dent J 1992; 173(3): 98-101.
Mese A, Burrow MF, Tyas MJ. Sorption and solubility of luting cements in different solutions. Dent Mater J 2008; 27(5): 702-9.