Evaluation of Enamel and Dentinal Microleakage in Class II Silorane-Based and Methacrylate-Based Resin Composite Restorations Using Specific and Nonspecific Adhesives
Objectives:The aim of this study was to evaluate enamel and dentinal microleakage in Class II cavities restored with silorane- and methacrylate-based resin composites using specific and nonspecific adhesives.
Materials and Methods: Thirty-six caries-free human premolars were used. Two Class II cavities were prepared on each tooth. The gingival floor was set at 1 mm above (on the mesial surface) and at 1 mm below (on the distal surface) the cementoenamel junction (CEJ). The samples were randomly divided into four groups, and the cavities were restored with a methacrylate-based composite (Filtek™ P60) and a silorane-based composite (Filtek™ P90) with specific and nonspecific adhesives. Microleakage was tested using a standardized dye penetration method. All samples were examined under a stereomicroscope, and microleakage scores were statistically analyzed using Kruskal-Wallis and Mann-Whitney-U tests. One sample from each group was examined under a scanning electron microscope (SEM) to determine the bonding area.
Results: No significant difference was found between the groups in terms of the enamel microleakage (P=0.086). There was a significant difference between the groups with regard to dentinal microleakage (P=0.003). No significant reduction in microleakage was observed in groups restored with Filtek™ P90 composite using its specific adhesive compared to those restored with Filtek™ P60 composite using its specific adhesive (P=0.626).
Conclusions: The results indicated that the application of methacrylate- and silorane-based composites with specific or nonspecific adhesives had no impact on enamel microleakage, but it affected dentinal microleakage, and specific adhesives showed less microleakage. It seems that a phosphate-methacrylate-based intermediate resin is required to bond dimethacrylate adhesive to silorane-based composites.
- Krämer N, Lohbauer U, García-Godoy F, Frankenberger R. Light curing of resin-based composites in the LED era. Am J Dent. 2008 Jun;21(3):135-42.
- Chen MH. Update on dental nanocomposites. J Dent Res. 2010 Jun;89(6):549-60.
- de Almeida JB, Platt JA, Oshida Y, Moore BK, Cochran MA, Eckert GJ. Three different methods to evaluate microleakage of packable composites in Class II restorations. Oper Dent. 2003 Jul-Aug;28(4):453-60.
- Mitra SB, Wu D, Holmes BN. An application of nanotechnology in advanced dental materials. J Am Dent Assoc. 2003 Oct;134(10):1382-90.
- Weinmann W, Thalacker C, Guggenberger R. Siloranes in dental composites. Dent Mater. 2005 Jan;21(1):68-74.
- Eick JD, Smith RE, Pinzino CS, Kostoryz EL. Stability of silorane dental monomers in aqueous systems. J Dent. 2006 Jul;34(6):405-10.
- Dauvillier BS, Feilzer AJ. Low‐shrinkage dental restorative composite: modeling viscoelastic behavior during setting. J Biomed Mater Res B Appl Biomater. 2005 Apr;73(1):129-39.
- Yesilyurt C, Yoldas O, Altintas SH, Kusgoz A. Effects of food-simulating liquids on the mechanical properties of a silorane-based dental composite. Dent Mater J. 2009 May;28(3):362-7.
- Versluis A, Tantbirojn D, Pintado MR, DeLong R, Douglas WH. Residual shrinkage stress distributions in molars after composite restoration. Dent Mater. 2004 Jul;20(6):554-64.
- D'Alpino PH, de Farias NC, Silva MS, de Goes MF, González AH, Di Hipólito V. Compatibility between silorane adhesive and simplified methacrylate-based adhesive systems. Dent Mater J. 2013;32(2):263-73.
- Mine A, De Munck J, Van Ende A, Cardoso MV, Kuboki T, Yoshida Y, et al. TEM characterization of a silorane composite bonded to enamel/dentin. Dent Mater. 2010 Jun;26(6):524-32.
- Navarra CO, Cadenaro M, Armstrong SR, Jessop J, Antoniolli F, Sergo V, et al. Degree of conversion of Filtek Silorane Adhesive System and Clearfil SE Bond within the hybrid and adhesive layer: an in situ Raman analysis. Dent Mater. 2009 Sep;25(9):1178-85.
- Dhingra V, Taneja S, Kumar M, Kumari M. Influence of fiber inserts, type of composite, and gingival margin location on the microleakage in Class II resin composite restorations. Oper Dent. 2014 Jan-Feb;39(1):E9-15.
- Krifka S, Federlin M, Hiller KA, Schmalz G. Microleakage of silorane- and methacrylate-based class V composite restorations. Clin Oral Investig. 2012 Aug;16(4):1117-24.
- Umer F, Naz F, Khan FR. An in vitro evaluation of microleakage in class V preparations restored with Hybrid versus Silorane composites. J Conserv Dent. 2011 Apr;14(2):103-7.
- Schmidt M, Kirkevang LL, Hørsted-Bindslev P, Poulsen S. Marginal adaptation of a low-shrinkage silorane-based composite: 1-year randomized clinical trial. Clin Oral Investig. 2011 Apr;15(2):291-5.
- Duarte S Jr, Phark JH, Varjão FM, Sadan A. Nanoleakage, ultramorphological characteristics, and microtensile bond strengths of a new low-shrinkage composite to dentin after artificial aging. Dent Mater. 2009 May;25(5):589-600.
- Rolland SL, Carrick TE, Walls AW, McCabe JF. Dentin decontamination using chloramine T prior to experiments involving bacteria. Dent Mater. 2007 Dec;23(12):1468-72.
- Shafiei F, Akbarian S. Microleakage of nanofilled resin-modified glass-ionomer/silorane- or methacrylate-based composite sandwich Class II restoration: effect of simultaneous bonding. Oper Dent. 2014 Jan-Feb;39(1):E22-30.
- Hegde MN, Hegde P, Chandra CR. Morphological evaluation of new total etching and self etching adhesive system interfaces with dentin. J Conserv Dent. 2012 Apr;15(2):151-5.
- Ernst CP, Galler P, Willershausen B, Haller B. Marginal integrity of class V restorations: SEM versus dye penetration. Dent Mater. 2008 Mar;24(3):319-27.
- Akimoto N, Takamizu M, Momoi Y. 10-year clinical evaluation of a self-etching adhesive system. Oper Dent. 2007 Jan-Feb;32(1):3-10.
- Van Meerbeek B, Yoshihara K, Yoshida Y, Mine A, De Munck J, Van Landuyt KL. State of the art of self-etch adhesives. Dent Mater. 2011 Jan;27(1):17-28.
- Nikolaenko SA, Lohbauer U, Roggendorf M, Petschelt A, Dasch W, Frankenberger R. Influence of c-factor and layering technique on microtensile bond strength to dentin. Dent Mater. 2004 Jul;20(6):579-85.
- Tezvergil-Mutluay A, Lassila LV, Vallittu PK. Incremental layers bonding of silorane composite: the initial bonding properties. J Dent. 2008 Jul;36(7):560-3.
- Van Ende A, De Munck J, Mine A, Lambrechts P, Van Meerbeek B. Does a low-shrinking composite induce less stress at the adhesive interface? Dent Mater. 2010 Mar;26(3):215-22.
- Gao BT, Lin H, Han JM, Zheng G. Polymerization characteristics, flexural modulus and microleakage evaluation of silorane-based and methacrylate-based composites. Am J Dent. 2011 Apr;24(2):97-102.
- De Munck J, Van Landuyt K, Coutinho E, Poitevin A, Peumans M, Lambrechts P, et al. Micro-tensile bond strength of adhesives bonded to Class-I cavity-bottom dentin after thermo-cycling. Dent Mater. 2005 Nov;21(11):999-1007.
- De Munck J, Vargas M, Iracki J, Van Landuyt K, Poitevin A, Lambrechts P, et al. One-day bonding effectiveness of new self-etch adhesives to bur-cut enamel and dentin. Oper Dent. 2005 Jan-Feb;30(1):39-49.
- Samimi P, Alizadeh V, Fathpour K, Mazaheri H, Mortazavi V. In-vitro comparison of the effect of different bonding strategies on the micro-shear bond strength of a silorane-based composite resin to dentin. Dent Res J (Isfahan). 2016 Mar-Apr;13(2):124-31.
- Hamano N, Ino S, Fukuyama T, Hickel R, Kunzelmann KH. Repair of silorane-based composites: microtensile bond strength of silorane-based composites repaired with methacrylate-based composites. Dent Mater J. 2013;32(5):695-701.