Fluoride Release and Recharge from Different Materials Used as Fissure Sealants

Objectives: Fluoride release/recharge properties of fissure sealants are important for their longterm inhibition of caries. This study was conducted to examine the relationship between fluoride release and recharge of pit-and-fissure sealants.

Methods: Specimens were prepared from 5 different sealant materials: Fissurit F, a conventional resin; Fuji VII, a glass-ionomer cement (GIC); Fuji II LC, a resin-modified GIC; Ionosit, a polyacidmodified composite resin (PMRC); and Aelite Flo, a flowable composite resin. Specimens stored in a polyethylene test tube containing 5.0 ml ultrapure water. On day 21, specimens were exposed to 1.23% APF gel. Fluoride release was measured using a fluoride-specific ion electrode at 1-7, 14, 21, 22, 28, 35 and 42 days.

Results: The glass-ionomer based sealants Fuji VII and Fuji II LC had significantly higher fluoride release than the other materials at all times tested (P<.05). Fluoride release of all materials tested increased following exposure to APF gel (P<.05).

Conclusions: Within the limitations of this short-term study, glass ionomer-based sealants were shown to have higher initial fluoride release as well as higher fluoride recharge capacity than other sealants. (Eur J Dent 2010;4:245-250)

Keywords

Fissure sealant - Fluoride release - Fluoride recharge - Preventive dentistry - Topical fluoride

• REFERENCES

• 1 Mouradian WE. The face of a child: Children’s oral health and dental education. J Dent Educ 2001; 65: 821-831
• 2 McDonald RE, Avery DR, Robertson W. Dentistry for Child and Adolescent. 7th ed. Mosby Co; St Louis: 2000: 373-383
• 3 Koga H, Kameyama A, Matsukubo T, Hirai Y, Takaesu Y. Comparison of short-term in vitro fluoride release and recharge from four different types of pit-and-fissure sealants. Bull Tokyo Dent Coll 2004; 45: 173-179
• 4 Simonsen RJ. Pit and fissure sealant: review of the literature. Pediatr Dent 2002; 24: 393-414
• 5 Ripa LW. Dental materials related to prevention-fluoride incorporation into dental materials: reaction paper. Adv Dent Res 1991; 5: 56-59
• 6 Ganesh M, Shobha T. Comparative evaluation of the marginal sealing ability of Fuji VII and Concise as pit and fissure sealants. J Contemp Dent Pract 2007; 8: 10-18
• 7 Pardi V, Sinhoreti MA, Pereira AC, Ambrosano GM, Meneghim CMde. In vitro evaluation of microleakage of different materials used as pit-and-fissure sealants. Braz Dent J 2006; 17: 49-52
• 8 Rock WP, Foulkes EE, Perry H, Smith AJ. A comparative study of fluoride-releasing composite resin and glass ionomer materials used as fissure sealants. J Dent 1996; 24: 275-280
• 9 Grande RH, Lima ACP, Rodrigues LEFilho, Witzel MF. Clinical evaluation of an adhesive used as a fissure sealant. Am J Dent 2000; 13: 167-170
• 10 Llodra JC, Bravo M, Delgado-Rodriguez M, Baca P, Galvez R. Factors influencing the effectiveness of sealants - a meta analysis. Community Dent Oral Epidemiol 1993; 21: 261-268
• 11 Lindemeyer RG. The use of glass ionomer sealants on newly erupting permanent molars. JCDA 2007; 73: 131-134
• 12 Aranda M, Garcia-Godoy F. Clinical evaluation of the retention and wear of a light-cured pit and fissure glass ionomer sealant. J Clin Pediatr Dent 1995; 19: 273-277
• 13 deGee AJ. Physical properties of glass-ionomer cements: setting shrinkage and wear. In Davidson CL, Mjör I. (eds) Advances in glass-ionomer cements. Leipzig: Quintessence; 1999: 51-66
• 14 Futatsuki M, Nozawa M, Ogata T, Nakata M. Wear of resin modified glass-ionomers: an in vitro study. J Clin Pediatr Dent 2001; 25: 297-301
• 15 Yamamoto K, Kojima H, Tsutsumi T, Oguchi H. Effects of tooth-conditioning agents on bond strength of a resin modified glass-ionomer sealant to enamel. J Dent 2003; 31: 13-18
• 16 Raadal M, Utkilen AB, Nilsen OL. Fissure sealing with a light cured resin-reinforced glass-ionomer cement (Vitrebond) compared with a resin sealant. Int J Pediatr Dent 1996; 6: 235-239
• 17 Preston AJ, Agalamanyi EA, Higham SM, Mair LH. The recharge of esthetic dental restorative materials with fluoride in vitro-two years’ results. Dent Mater 2003; 19: 32-37
• 18 Strother JM, Kohn DH, Dennison JB, Clarkson BH. Fluoride release and re-uptake in direct tooth colored restorative materials. Dent Mater 1998; 14: 129-136
• 19 Takahashi K, Emilson CG, Birkhed D. Fluoride release in vitro from various glass ionomer cements and resin composites after exposure to NaF solutions. Dent Mater 1993; 9: 350-354
• 20 Vieira AR, De IPSouza, Modesto A. Fluoride uptake and release by composites and glass ionomers in a high caries challenge situation. Am J Dent 1999; 12: 14-18
• 21 Attar N, Turgut MD. Fluoride release and uptake capacities of fluoride-releasing restorative materials. Oper Dent 2003; 28: 395-402
• 22 Bilgin Z, Ozalp N. Fluoride release from three different types of glass ionomer cements after exposure to NaF solution and APF gel. J Clin Pediatr Dent 1998; 22: 237-241
• 23 Itota T, Okamoto M, Sato K, Nakabo S, Nagamine M, Torii Y. et al Release and recharge of fluoride by restorative materials. Dent Mater J 1999; 18: 347-353
• 24 Cildir SK, Sandalli N. Fluoride release/uptake of glassionomer cements and polyacid-modified composite resins. Dent Mater J 2005; 24: 92-97
• 25 Kavaloglu SKCildir, Sandalli N. Compressive, strength surface roughness, fluoride release and recharge of four new fluoride-releasing fissure sealants. Dent Mater J 2007; 26: 335-341
• 26 Bravo M, Montero J, Bravo JJ, Baca P, Llodra JC. Sealant and fluoride varnish in caries: a randomized trial. J Dent Res 2005; 84: 1138-1143
• 27 De RJMoor, Verbeeck RM, De EAMaeyer. Fluoride release profiles of restorative glass ionomer formulations. Dent Mater 1996; 12: 88-95
• 28 Francci C, Deaton TG, Arnold RR, Swift EJ, Perdigao J, Bawden JW. et al Fluoride release from restorative materials and its effects on dentin demineralization. J Dent Res 1999; 78: 1647-1654
• 29 Perrin C, Persin M, Sarrazin J. A comparison of fluoride release from four glass ionomer cements. Quintessence Int 1994; 25: 605-608
• 30 Itota T, Carrick Te, Rusby S, Al-Naimi OT, Yoshiyama M, Mccabe JF. Determination of fluoride ions released from resin-based dental materials using ion-selective electrode and ion chromatograph. J Dent 2004; 32: 117-122
• 31 Garcia-Godoy F, de SLPerez. Effect of fluoridated gels on a light cured glass ionomer cement: A SEM study. J Clin Pediatr Dent 1993; 17: 83-87
• 32 Preston AJ, Higham SM, Agalamanyi EA, Mair LH. Fluoride recharge of aesthetic dental materials. J Oral Rehabil 1999; 26: 936-940
• 33 Cranfield M, Kuhn AT, Winter GB. Factors relating to the rate of fluoride-ion release from glass-ionomer cement. J Dent 1982; 10: 333-341
• 34 DeSchepper EJ, Berr EA, 3rd Cailleteau JG, Tate WH. A comparative study of fluoride release from glass-ionomer cements. Quintessence Int 1991; 22: 215-219
• 35 Forsten L. Fluoride release from a glass ionomer cement. Scand J Dent Res 1977; 85: 503-504
• 36 Xu X, Burgess JO. Compressive strength, fluoride release and recharge of fluoride-releasing materials. Biomaterials 2003; 24: 2451-2461
• 37 Attar N, Onen A. Fluoride release and uptake characteristics of aesthetic restorative materials. J Oral Rehabil 2002; 29: 791-798
• 38 Hatiboviæ-Kofman S, Koch G. Fluoride release from glass ionomer cement in vivo and in vitro. Swed Dent J 1991; 15: 253-258
• 39 Suljak JP, Hatibovic-Kofman S. A fluoride release-adsorption- release system applied to fluoride-releasing restorative materials. Quintessence Int 1996; 27: 635-638