Aim: The purpose of this in vitro study was to determine the effect of different composite placement techniques on gingival microleakage of giomer restorations. Materials and methods: Sixty class II preparations were created in 30 extracted molar teeth with cervical margins 1 mm below the cementoenamel junction. The teeth were divided into three groups of 10 teeth each. In group I, teeth were restored with open sandwich technique using Beautifil II and Beautifil II Flow. In group II, teeth were restored with snowplow technique using Beautifil II and Beautifil Flow. In group III, teeth were restored with oblique increment technique using Beautifil II. After thermocycling and immersion in 2% methylene blue, the teeth were sectioned and dye penetration was evaluated. Results: Statistically significant reduction in microleakage was found along the gingival walls in snowplow restorations compared to sandwich restoration and oblique increment restorations. Clinical significance: Microleakage was reduced along the gingival walls in snowplow restorations. Conclusion: Microleakage was significantly lower in the snowplow restorations.
Kidd EA. Microleakage: a review. J Dent 1976;4(5):199–206. DOI: 10.1016/0300-5712(76)90048-8.
Donly KJ, Wild TW, Jensen ME. Posterior composite class II restorations: in vitro comparison of preparation designs and restoration techniques. Dent Mater 1990;6(2):88–93. DOI: 10.1016/S0109-5641(05)80036-3.
Félix SA, González-López S, Mauricio PD, et al. Effects of filling techniques on the regional bond strength to lateral walls in class I cavities. Oper Dent 2007;32(6):602–609. DOI: 10.2341/06-170.
Duarte Jr S, Dinelli W, da Silva MH. Influence of resin composite insertion technique in preparations with a high C-factor. Quintessence Int 2007;38(10):829–835.
Giachetti L, Scaminaci Russo D, Bambi C, et al. A review of polymerization shrinkage stress: current techniques for posterior direct resin restorations. J Contemp Dent Pract 2006;17(4):79–88. DOI: 10.5005/jcdp-7-4-79.
Behle C. Flowable composite: Properties and applications. Pract Periodontics Aesthet Dent 1998;10(3):347, 350–351.
Staninec M, Mochizuki A, Tanizaki K, et al. Interfacial space, marginal leakage and enamel cracks around composite resins. Oper Dent 1986;11(1):14–24.
Olmez A, Oztas N, Bodur H. The effect of flowable resin composite on microleakage and internal voids in class II composite restoration. Oper Dent 2004;29(6):713–719.
Petzfeldt A, Asmussen E. Composite restoration: influence of flowable and self curing resin composite liningson microleakage in vitro. Oper Dent 2002;27(6):569–575.
Bagis YH, Baltacioglu IH, Kahyaogullari S. Comparing microleakage and the layering methods of silorane-based resin composite in wide Class II MOD cavities. Oper Dent 2009;34(5):578–585. DOI: 10.2341/08-073-LR.
Summitt JB, Robbins JW, Hilton TJ, et al. Fundamentals of operative dentistry A Contemporary Approach, 3rd ed., 2006. p. 316.
Porosity formation and microleakage of composite resins using the snowplow technique. A Presicci-2012 – apps.dti c.mil.
Resin-modified glass ionomer: The open sandwich technique. http://www.dentaleconomics.com.
Chandrasekhar V, Rudrapati L, Badami V, et al. Incremental techniques in direct composite restoration. J Conserv Dent 2017;20(6):386–391. DOI: 10.4103/JCD.JCD_157_16.
Malik N, Lin SL, Rehman NA, et al. Effect of liners on microleakage in class II composite restoration (Pengaruh Pelapik Tampalan pada Kebocoran Mikro di Komposit Restorasi Kelas II). Sains Malaysiana 2013;42(1):45–51.
Lindberg A, Dijken JW, Lindberg M. Nine year evaluation of a polyacid-modified resin composite/resin composite open sandwich technique in class II cavities. J Dent 2007;35(2):124–129. DOI: 10.1016/j.jdent.2006.06.003.
Chuang SF, Liu JK, Jin YT. Microleakage and internal voids in class II composite restorations with flowable composite linings. Oper Dent 2001;26(2):193–200.
Kemp-Sholte CM, Davidson CL. Marginal integrity related to bond strength and strain capacity of composite resin restorative systems. J Prosthet Dent 1990;64(6):658–664. DOI: 10.1016/0022-3913(90) 90291-J.
Sadeghi M. The effect of fluid composite as gingival layer on microleakage of class II composite resorations. Dent Res J 2007;4(1):40–47.
Labella R, Lambrechts P, Van Meerbeek B, et al. Polymerization shrinkage and elasticity of flowable composites and filled adhesives. Dent Mater 1999;15(2):128–137. DOI: 10.1016/S0109-5641(99) 00022-6.
Yoshikawa T, Sano H, Burrow MF, et al. Effects of dentin depth and cavity configuration on bond strength. J Dent Res 1999;78(4): 898–905. DOI: 10.1177/00220345990780041001.
Hilton T, Quin R. Marginal leakage of class 2 composite/flowable restorations with varied cure technique (abstract 502). J Dent Res 2001;80:589.
Pomohaci DD, Radu TM, Teodorovici P, et al. Preventing marginal microleakage in class ii restoration using bioadhesive materials. J Romanian Med Dent 2009;13(3):63–68.
Alster D, Feilzer AJ, de Gee AJ, et al. The dependence of shrinkage stress reduction of porocity concentration in thin resin layers. J Dent Res 1992;71(9):1619–1622. DOI: 10.1177/00220345920710091401.
Chuang SF, Liu JK, Chao CC, et al. Effect of flowable composite lining and operator experience on microleakage and internal voids in class II composite restorations. J Prosthet Dent 2001;85(2):177–183. DOI: 10.1067/mpr.2001.113780.
Nikolaenko SA, Lohbauer U, Roggendorf M, et al. Influence of C-factor and layering technique on microtensile bond strength to dentin. Dent Mater 2004;20(6):579–585. DOI: 10.1016/j.dental.2003.08.001.
Fabianelli A, Sgarr A, Goracci C, et al. Microleakage in class II restorations: open vs closed centripetal build-up technique. Oper Dent 2010;35(3):308–313. DOI: 10.2341/09-128-L.
Doerr CL, Hilton TJ, Hermesch CB. Effect of thermocycling on the microleakage of conventional and resin modified glass ionomer. Am J Dent 1996;9(1):19–21.
Yap AU. Effects of storage, thermal and load cycling on a new reinforced glass-ionomer cement. J Oral Rehabil 1997;25(1):40–44. DOI: 10.1046/j.1365-2842.1998.00192.x.