Evaluation of Effect of Different Cavity Disinfectants on Shear Bond Strength of Composite Resin to Dentin using Two-Step Self-Etch and One-Step Self-Etch Bonding Systems: A Comparative in vitro Study
Shreetha Bhandary, M Surya Chaitanya Reddy, MC Mahesh, J Pramod, Ashwija Shetty
Citation Information :
Bhandary S, Reddy MS, Mahesh M, Pramod J, Shetty A. Evaluation of Effect of Different Cavity Disinfectants on Shear Bond Strength of Composite Resin to Dentin using Two-Step Self-Etch and One-Step Self-Etch Bonding Systems: A Comparative in vitro Study. J Contemp Dent Pract 2013; 14 (2):275-280.
To evaluate the effect of 2% chlorhexidine, 2% sodium hypochlorite, 3% hydrogen peroxide on shear bond strength of composite resin to dentin using two-step and onestep self-etch bonding systems and to study the mode of failure of specimens under stereomicroscope.
Materials and methods
Eighty extracted sound human posterior teeth were used. The occlusal surfaces were ground to expose the dentin and were then randomly divided into 4 main groups. In group I, no cavity disinfectant was used and served as control. In groups II, III, IV, 2% chlorhexidine, 2% sodium hypochlorite and 3% hydrogen peroxide were used as cavity disinfectants respectively. Each group was then divided into two subgroups of 10 teeth each according to the bonding agent used, two-step self-etch (Adper SE Plus) and one-step self-etch (Adper Easy One) respectively. A transparent cylindrical plastic tube was loaded with microhybrid composite and placed over the dentin and light cured for 40 seconds. The specimens were subjected to shear stress in the universal testing machine.
Results
Pretreatment with 2% chlorhexidine, 2% sodium hypochlorite and 3% hydrogen peroxide, had a negative effect on the shear bond strength of self-etching bonding systems.
Conclusion
The highest bond strength was found in 2% chlorhexidine group followed by 2% sodium hypochlorite group and the lowest bond strength was found in 3% hydrogen peroxide group.
Clinical significance
All three cavity disinfectants used in this study reduced the shear bond strength and hence should be used with caution.
How to cite this article
Reddy MSC, Mahesh MC, Bhandary S, Pramod J, Shetty A. Evaluation of Effect of Different Cavity Disinfectants on Shear Bond Strength of Composite Resin to Dentin using Two-Step Self-Etch and One-Step Self-Etch Bonding Systems: A Comparative in vitro Study. J Contemp Dent Pract 2013;14(2):275-280.
Effect of 2% iodine disinfecting solution on bond strength to dentin. J Appl Oral Sci 2006;14(6):399-404.
Effects of dentin disinfectants on shear bond strength of all-ceramics to dentin. Oper Dent 2005;30(4):453-60.
Antimicrobial substantivity of cavity disinfectants. Gen Dent 2005;53(3):182-86.
Effect of different cavity disinfectants on shear bond strength of composite resin to dentin. J Adhes Dent 2009;11:343-46.
Influence of a 3-step tooth disinfection procedure on dentin bond strength. J Prosthet Dent 2005;93(6):545-50.
Antibacterial effect of an ozone device and its comparison with two dentin-bonding systems. Eur J Oral Sci 2006;114(4):349-53.
The effect of antimicrobial pretreatments on the performance of resin composite restorations. Oper Dent 2003;28(6):716-22.
Effect of 2% chlorhexidine on microtensile bond strength of composite to dentin. J Adhes Dent 2003;5(2):129-38.
In vitro effect of cavity disinfectants on the bond strength of dentin bonding systems. Quintessence Int 2004:35(1):56-60.
Sodium hypochlorite as dentin pretreatment for etch-and-rinse single-bottle and twostep self-etching adhesives: Atomic force microscope and tensile bond strength evaluation. J Adhes Dent 2008;10(2):135-44.
Operative Dentistry, St Louis. CV Mosby Co 1982:52.
The cause of postoperative sensitivity and its prevention. J Endodontics 1986;10:475.
Deep dentinal caries from a microbiological point of view. International Dent J 1968;18(3):481-88.
The fate of bacteria sealed in dental cavities. J Dental Research 1943;22:349.
A comparison of digital and optical criteria for detecting carious dentin. J Prosthet Dent 1985;53(5):643-46.
Shear versus micro-shear bond strength test: A finite element stress analysis. Dent Mater 2007;23(9):1086-92.
Antimicrobial effect of chlorhexidine digluconate in dentin: In vitro and in situ study. J Conserv Dent 2012;15(1):22-26.
Antibacterial activity in adhesive dentistry: A literature review. Gen Dent 2012;60(6):346-56.
Mechanism of action of sodium hypochlorite. Braz Dent J 2002;13(2):113-17.
Effect of disinfectant application methods on the bond strength of composite to dentin. J Oral Rehabil 1999;26(10):836-40.
Scrubbing effect of self-etching adhesives on bond strength to NaOCl treated dentin. J Adhes Dent 2012;14(2):121-27.
Bond strength of adhesives to dentin involving total and selfetch adhesives. Quintessence Int 2007;38:206-12.
Influence of chlorhexidine digluconate on bond strength durability of a selfetching adhesive system. RSBO 2011;8(4):417-22.
Influence of chlorhexidine concentration on microtensile bond strength of contemporary adhesive systems. Braz Oral Res 2009;23(3):340-45.
Chlorhexidine diminishes the loss of bond strength over time under simulated pulpal pressure and thermomechanical stressing. J Dent 2009;37(2):108-14.
Improving the effect of NaOCl pretreatment on bonding to caries-affected dentin using self-etch adhesives. J Dent 2009;37(10):769-75.
Influence of sodium hypochlorite and EDTA on the microtensile bond strength of a self-etching adhesive system. J Appl Oral Sci 2010;18(4):385-89.
The effect of prophylaxis method on microtensile bond strength of indirect restorations to dentin. Oper Dent 2012;37(6):602-09.
