EVALUATION OF FLUORIDE UPTAKE FROM FOUR DIFFERENT FLUORIDERELEASING RESTORATIVE MATERIALS BY BOVINE ENAMEL: IN VITRO STUDY

Abstract

Aim: The aim of this study was to compare the fluoride uptake from four different of fluoride releasing restorative materials by bovine enamel and to determine the effect of time on this uptake. Material and Method: A glass ionomer cement (Fuji II), resin-modified glass ionomer cement(Fuji II LC), giomer (Beautifil) and compomer (Dyract AP) were elected. A total of 120 bovine enamel slabs were prepared from the buccal surfaces of the bovine teeth. The slabs were divided into 5 subgroups (n=6) representing 5 time intervals (1, 7, 14, 21 and 35 days). Fluoride-ion selective electrode method was used to determine the enamel fluoride uptake was determined. Results: Glass ionomers and giomer had significantly higher fluoride uptake than compomer (p<0.05). Glass ionomers and giomer had similar fluoride uptake in all test intervals. Conclusion: Considering the enhanced physical properties and long-term fluoride release similar to glass ionomers, giomers are found to be promising

Keywords

• Giomer, glass ionomer, fluoride uptake, fluoride-ion selective electrode

DÖRT FARKLI FLUORİD SALINIMI YAPAN RESTORATİF MATERYALDEN FLUORİD EMİLİMİNİN SIĞIR MİNESİNDE DEĞERLENDİRİLMESİ: İN VİTRO ÇALIŞMA

Abstract

Amaç: Bu çalışmanın amacı fluorid salınımı yapan 4 farklı tip restoratif materyalin sığır dişlerinin minesinde flourid emilimini karşılaştırmak ve bu emilime zamanın etkisini belirlemektir. Gereç ve Yöntem: Çalışmada cam iyonomer siman (Fuji II), rezin modifiye cam iyonomer siman (Fuji II LC), giomer (Beautifil) ve kompomer (Dyract AP) materyalleri kullanıldı. Sığır dişinin minesinin bukkal yüzeylerinden toplam120 adet örnek hazırlandı. Örnekler her bir materyal grubu için 5 zaman aralığını (1, 7, 14, 21 ve 35 gün) temsil eden 5 alt gruba (n =6) ayrıldı. Fluorid emilimini belirlemek icin florür iyonu seçici elektrot yöntemi kullanıldı. Bulgular: Cam iyonomerler ve giomer kompomere göre (p <0.05) anlamlı olarak daha yüksek fluorid emilimi gösterdi. Cam iyonomerler ve giomerin tüm test aralıklarında benzer fluorid emilimi gösterdiği belirlendi. Sonuç: Giomerlerin gelişmiş fiziksel özellikleri ve cam iyonomerlere benzer uzun süreli fluorid salınımı göz önüne alındığında çocuk diş hekimliği için uygun bir materyal olduğu bulgulanmıştır.

Keywords

• Giomer, cam iyonomer, fluorid alımı, florür iyonu seçiçi elektrot

References

1. Ahiropoulos V,
2. Helvatjoglu-Antoniades M,
3. Papadogiannis Y. In vitro fluoride uptake by bovine
4. enamel from aesthetic restorative materials. Int J
5. Paediatr Dent 2008;18:291-9.
6. Dionysopoulos D,
7. Koliniotou-Koumpia E,
8. Helvatzoglou-Antoniades M, Kotsanos N. Fluoride

9. release and recharge abilities of contemporary
10. fluoride-containing restorative materials and dental
11. adhesives. Dent Mater J 2013;32:296-304.
12. Ozdemir-Ozenen D, Sungurtekin E, Issever H, Sandalli N. Surface roughness of fluoride-releasing restorative materials after topical fluoride application. Eur J Paediatr Dent 2013;14:68-72.
13. Naoum S, Ellakwa A, Martin F, Swain M. Fluoride release, recharge and mechanical property stability of various fluoride-containing resin composites. Oper Dent 2011;36:422-32.
14. Moreau JL, Xu HH. Fluoride releasing restorative materials: Effects of pH on mechanical properties and ion release. Dent Mater 2010;26:e227-35.
15. Mitra SB, Oxman JD, Falsafi A, Ton TT. Fluoride release and recharge behavior of a nano-filled resin-modified glass ionomer compared with that of other fluoride releasing materials. Am J Dent 2011;24:372-8.
16. Mickenautsch S, Yengopal V. Effect of xylitol versus sorbitol: a quantitative systematic review of clinical trials. Int Dent J 2012;62:175-88.
17. Stoodley P, Wefel J, Gieseke A, Debeer D, von Ohle C. Biofilm plaque and hydrodynamic effects on mass transfer, fluoride delivery and caries. J Am Dent Assoc 2008;139:1182-90.
18. Sari ME, Ozmen B. Comparison of different resin- modified glass ionomer cements of water sorption and microleakage values used in. J Dent Fac Atatürk Uni
 2013;21:43-9.
19. Dhull KS, Nandlal B. Effect of low-concentration daily topical fluoride application on fluoride release of giomer and compomer: an in vitro study. J Indian Soc Pedod Prev Dent 2011;29:39-45.
20. Tay WM, Braden M. Fluoride ion diffusion from polyalkenoate Biomaterials 1988;9:454-6. cements.
21. Roberts TA, Miyai K, Ikemura K, Fuchigami K, Kitamura T. Fluoride ion sustained release performed glass ionomer filler and dental compositions containing the same. Uniited States Patent No. 5,883,153;1999.
22. Ikemura K, Tay FR, Kouro Y, Endo T, Yoshiyama M, Miyai K, Pashley DH. Optimizing filler content in an adhesive system containing pre-reacted glass- ionomer fillers. Dent Mater 2003;19:137-46.
23. Itota T, Carrick TE, Yoshiyama M, McCabe JF. Fluoride release and recharge in giomer, compomer and resin composite. Dent Mater 2004;20:789-95.
24. Duckworth RM, Lynch RJ. Fluoride uptake to demineralised enamel: A comparison of sampling techniques. Caries Res 1998;32:417-21.
25. Dijkman AG, Arends J. Thickness of enamel layers removed by HClO4 etching. Caries Res 1982;16:129-37.
26. Lammers PC, Borggreven JM, Driessens FC, Van Dijk JW. Influence of fluoride and carbonate on in vitro remineralization of bovine enamel. J Dent Res 1991;70:970-4.
27. Yap AU, Tham SY, Zhu LY, Lee HK. Short-term fluoride release from various aesthetic restorative materials. Oper Dent 2002;27:259-65.
28. Okuyama K, Murata Y, Pereira PN, Miguez PA, Komatsu H, Sano H. Fluoride release and uptake by various dental materials after fluoride application. Am J Dent 2006;19:123-7.
29. Tay FR, Pashley EL, Huang C, Hashimoto M, Sano H, Smales RJ, Pashley DH. The glass-ionomer phase in resin-based restorative materials. J Dent Res 2001;80:1808-12.
30. Ikemura K, Tay FR, Kouro Y, Endo T, Yoshiyama M, Miyai K, Pashley DH. Optimizing filler content in an adhesive system containing pre-reacted glass- ionomer fillers. Dent Mater 2003;19:137-46.
31. Gao W, Smales RJ, Gale MS. Fluoride release/uptake from newer glass-ionomer cements used with the ART approach. Am J Dent 2000;13:201-4.
32. Tam LE, Chan GP, Yim D. In vitro caries inhibition effects by conventional and resin-modified glass- ionomer restorations. Oper Dent 1997;22:4-14.
33. Attar N, Onen A. Fluoride release and uptake characteristics of aesthetic restorative materials. J Oral Rehabil 2002;29:791-8.
34. Xu X, Burgess JO. Compressive strength, fluoride release and recharge of fluoride-releasing materials. Biomaterials 2003;24:2451-61.
35. Eliades G, Kakaboura A, Palaghias G. Acid-base reaction and fluoride release profiles in visible light-cured restoratives (compomers). Dent Mater 1998;14:57- 63. composite