EFFECT OF TOPICAL FLUORIDE APPLICATIONS ON THE MICROHARDNESS OF GLASS IONOMER BASED FISSURE SEALANTS

Year 2015, Volume: 25 Issue: 1, 7 - 12, 21.05.2015

Selçuk Savaş Başak Bölükbaşı Ebru Küçükyılmaz

https://doi.org/10.17567/dfd.03990

Abstract

Aim: The aim of this study was to assess the effect of topical fluoride applications on the surface microhardness of different glass ionomer based fissure sealants. Method: In this study different glass ionomer based fissure sealants were used (Fuji Triage, GCP Glass Seal, Fuji VII EP). 72 disc shaped specimens (8.0x2.5 mm) manufacturer’s instructions were photopolimerized with light source (Valo, Ultradent Products Inc, South Jordan, UT, USA), after stored in distilled water at 37°C for 24 hour initial microhardness measurements were performed with Vicker’s microhardness tester (Shimadzu Micro Hardness Tester HMV-2, Shimadzu Corporation, Kyoto, Japan). Specimens were randomly assigned to 2 experimental groups according to surface treatment regimens consisting of 2% NaF gel (Sultan Topex neutral pH gel, Sultan Dental Products, USA) and 1.23%APF gel (Sultan Topex APF gel, Sultan Dental Products, USA) and these groups were assigned to 3 experimental subgroups according to application types (1 minute gel application, 4 minute gel application, 4x4 minute gel application). After applications; specimens were rinsed with distilled water and microhardness measurements were repeated.Statistical analysis were made with repeated measures ANOVA and Bonferroni correction (=0.05).Result: It has been found that the types of applied agents, time of application and repeated applications reduce the hardness values of fissure sealant material, but the difference was not statistically significant (p > 0.05). Conclusion: Microhardness values of the different content fissure sealants used in the study were found not to be affected by topical fluoride applications

Keywords

Fissure Sealant, Microhardness, Topical Fluoride Application

TOPİKAL FLOR UYGULAMALARININ CAM İYONOMER ESASLI FİSSÜR ÖRTÜCÜ MATERYALLERİN MİKROSERTLİKLERİ ÜZERİNE ETKİSİ

Abstract

 Amaç: Bu çalışmanın amacı, topikal flor uygulama- larının farklı içeriklerdeki cam iyonomer esaslı fissür örtücü materyallerin mikrosertlikleri üzerine olan etkilerinin incelenmesidir.

Metot: Çalışmada farklı içeriklere sahip cam iyonomer esaslı 3 adet fissür örtücü materyal kullanıldı (Fuji Triage, GCP Glass Seal, Fuji VII EP). Üretici firmaların talimatları doğrultusunda disk şeklinde hazırlanan 72 adet örnek (8.0x2.5 mm), ışık tabancası (Valo, Ultradent Products Inc, South Jordan, UT, USA) ile polimerize edildi, 24 saat 37ºC’de, deiyonize su içerisinde bekletildikten sonra başlangıç mikrosertlik ölçümleri Vicker’s mikrosertlik test cihazı (Shimadzu Micro Hardness Tester HMV-2, Shimadzu Corporation, Kyoto, Japan) ile gerçekleştirildi. Ölçümleri tamam- lanan örnekler, rastlantısal olarak %2’lik NaF (Sultan Topex neutral pH gel, Sultan Dental Products, USA) ve %1,23’lük APF’nin (Sultan Topex APF gel, Sultan Dental Products, USA) uygulandığı 2 gruba bu gruplar da kendi içerisinde uygulama şekillerine göre 3 alt gruba ayrıldı (1dk jel uygulaması, 4 dk jel uygulaması, 4x4 dk jel uygulaması). Uygulama sonrası örnekler deiyonize su ile yıkandı ve mikrosertlik ölçümleri tek- rarlandı. İstatistiksel analizler, tekrarlanan ölçümlü ANOVA testi ve Bonferroni düzeltmesi ile gerçek- leştirildi (a = 0.05).

Bulgular: Uygulanan ajanın türü, uygulama süresi ve tekrarlayan uygulamaların, fissür örtücü materyallerin mikrosertlik değerlerini düşürdüğü ancak elde edilen değerler arasında istatistiksel olarak anlamlı bir fark olmadığı bulunmuştur (p > 0.05).

Sonuç: Çalışmada kullanılan farklı içeriklere sahip fissür örtücülerin yüzey sertlik değerlerinin çalışmada kullanılan topikal flor uygulamalarından etkilenmediği görülmüştür.

Keywords

Fissür Örtücü, Mikrosertlik, Topikal Flor Uygulaması

References

• Guler C, Yilmaz Y. A two-year clinical evaluation of glass ionomer and ormocer based fissure sealants. J Clin Pediatr Dent 2013;37:263-7.
• Simonsen, RJ. Pit and fissure sealant: review of the literature. Pediatr Dent 2002;24:393-414.
• Marks D, Owens, BM, Johnson WW. Effect of adhesive agent and fissure morphology on the in vitro microleakage and penetrability of pit and fissure sealants. Quintessence Int 2009;40:763-72.
• Ahovuo­Saloranta A, Hiiri A, Nordblad A, Mäkelä M, Worthington HV. Pit and fissure sealants for preventing dental decay in the permanent teeth of children and adolescents. Cochrane Database Syst. 2008;Rev. 8:CD001830.
• Davidovich E, Weiss E, Fuks AB, Beyth N. Surface antibacterial properties of glass ionomer cements used in atraumatic restorative treatment. J Am Dent Assoc 2007;138:1347-52.
• Modena KC, Casas-Apayco LC, Atta MT, Costa CA, Hebling J, Sipert CR, Navarro MF, Santos CF. Cytotoxicity and biocompatibility of direct and indirect pulp capping materials. J Appl Oral Sci 2009;17:544-54.
• Hallgren A, Oliveby A, Twetman S. The state of the art of the ART restorations. Dent Update 2014;41:218-20.
• Valk JW, Davidson CL. The relevance of controlled fluoride release with bonded orthodontic appliances. J Dent 1987;15:257-260.
• Bynum AM, Donly KJ. Enamel de/remineralization on teeth adjacent to fluoride releasing materials without dentifrice exposure. ASDC J Dent Child 1999;66:89-92.
• Qvist V, Manscher E, Teglers PT. Resin-modiŞed and conventional glass ionomer restorations in primary teeth: 8-year results. J Dent2004;2:285- 94.
• Faccin ES, Ferreira SH, Kramer PF, Ardenghi TM, Feldens CA. Clinical performance of ART restorations in primary teeth: a survival analysis. J Clin Pediatr Dent 2009;33:295-8.
• Mazzaoui SA1, Burrow MF, Tyas MJ, Dashper SG, Eakins D, Reynolds EC. Incorporation of casein into a glass-ionomer cement. J Dent Res 2003; 82:914-8. 13. Cochrane NJ, Reynolds phosphopeptides -- mechanisms of action and evidence for clinical efficacy.. Adv Dent Res 2012;24:41-7 EC. Calcium
• Reynolds EC. The prevention of sub-surface demineralization of bovine enamel and change in plaque composition by casein in an intraoral model. J Dent Res 1987;66:1120-7
• Van Duinen RN, Davidson CL, De Gee AJ, Feilzer AJ. In situ transformation of glass-ionomer into an enamel-like material. Am J Dent2004;17:223-7.
• Marinho VC. Cochrane reviews of randomized trials of fluoride therapies for preventing dental caries. Eur Arch Paediatr Dent 2009;10:183-91.
• Demirci M, Ucok M. Hibrit iyonomer materyallerin florür salınımı. Atatürk Üniv Dis Hek Fak Derg 2000;10:61-5
• Erickson RL, Glasspoole EA. Model investigations of caries inhibition by fluoride-releasing dental materials. Adv Dent Res 1995;9:315-23.
• Turssi CP, de Magalhães CS, Serra MC. Effect of fluoride gels on micromorphology of resin-modified glass-ionomer cements and polyacidmodified resin composites. Quintessence Int 2001;32:571-7.
• Van Rijkom H, Ruben J, Vieira A, Huysmans MC, Truin GJ, Mulder J. Erosion-inhibiting effect of sodium fluoride and titanium tetrafluoride treatment in vitro. Eur J Oral Sci 2003;111:253–7.
• Cehreli ZC, Yazici R, García-Godoy F. Effect of 1.23 percent APF gel on fluoride-releasing restorative materials. ASDC J Dent Child 2000;67:330-7.
• Yip HK, Lam WT, Smales RJ. Surface roughness and weight loss of esthetic restorative materials related to fluoride release and uptake. J Clin Pediatr Dent 1999;23:321-6.
• Mejàre I, Lingström P, Petersson LG, Holm AK, Twetman S, Källestål C, et al. Caries-preventive effect of fissure sealants: a systematic review. Acta Odontol Scand 2003;61:321-30.
• Neusser S, Krauth C, Hussein R, Bitzer EM. Clinical effectiveness and cost-effectiveness of fissure sealants in children and adolescents with a high caries risk. GMS Health Technol Assess 2014;1:10.
• Smith DC. Polyacrylic acid-based cements-adhesion to enamel and dentin. Oper Dent 1992;Suppl 5:177-83.
• Khoroushi M, Keshani F.. A review of glass- ionomers: From conventional glass-ionomer to bioactive glass-ionomer. Dent Res J (Isfahan) 2013;10:411-20.
• Setty J V, Sıngh S, Subba Reddy V V. Comparison of the effect of topical fluorides on the commercially ionomers, resin modified glass ionomers and polyacid modified composite resins- An in vitro study. J Indian Soc Pedo Prev Dent2003;21:55-69
• Dunkin RT, Chambers DW. Gingival response to class V composite resin restorations. J Am Dent Assoc 1983;106:482-4.
• Yip HK, To WM, Smales RJ: Effects of artificial saliva and APF gel on the surface roughness of newer glass ionomer cements. Oper Dent 2004;29:661–8.
• Akselsen JP, Afseth J, Rolla G: In vitro damage to glass ionomer cements by fluoride ions. Caries Res 1987;21:188.
• Crisp S, Lewis BG, Wilson AD: Characterization of glass ionomer cements. A study of erosion and water absorption in both neutral and acidic media. J Dent 1980;8:68-74.
• Matsuys S, Matsuya Y, Yamaamoto Y, Yamane M: Erosion process of glass ionomer cement in organic acids. Dent Mater 1984;3:210-9.
• EI-Badrawy WAG, McComb D, Wood RE. Effect of home-use fluoride gels on glass ionomer and composite restorations. Dent Mater 1993;9:63-7.
• Topaloglu-Ak A, Cogulu D, Kocatas Ersin N, Sen BH. Microhardness and surface roughness of glass ionomer cements after APF and TiF4 applications. J Clin Pediatr Dent 2012;37:45–52.
• García-Godoy F, García-Godoy A, García-Godoy F. Effect of APF Minute-Foam on the surface roughness, hardness, and micromorphology of high-viscosity glass ionomers. J Dent Child 2003;70:19–23.
• Diaz-Arnold AM, Wistrom DW, Swift EJ Jr: Topical fluorides and glass ionomer micro hardness. Am J Dent 1995:8:134-6.
• Al Zraikat H, Palamara JE, Messer HH, Burrow MF and Reynolds EC. The incorporation of casein into a glass ionomer cement. Dent Mater 2011;27:235-43.
• Zalizniak I, Palamara JE, Wong RH, Cochrane NJ, Burrow MF and Reynolds EC. Ion release and physical properties of CPP-ACP modified GIC in acid solutions. J Dent 2013;41:449-54.
• Lucas ME, Arita K and Nishino M. Toughness, bonding and fluoride-release properties of hydroxyapatite-added glass ionomer cement. Biomaterials 2003;24:3787–94.
• Moshaverinia A, Ansari S, Moshaverinia M, Roohpour N,Darr JA and Rehman I. Effects of incorporation of hydroxyapatiteand fluoroapatite nanobioceramics into conventional glass ionomer cements (GIC). Acta Biomater 2008;4:432–40.