Journal of Research and Advancement in Dentistry
Official publication of Magadh University and Kolhan University, Government of Bihar and Jharkhand, India
Official publication of Magadh University and Kolhan University, Government of Bihar and Jharkhand, India
Year : 2019
Volume : Volume 10
Issue : Issue 4
Address for correspondence :
Dr. Shakti Singh Meena.
shaktisingh8989@yahoo.com
Background: The objective of this study was to evaluate the effect of 5.25% sodium hypochlorite and 2% chlorhexidine digluconate on the shear bond strength of one 7th generation (Adaper Easy One) and two 8th generation (Tetric N-Bond and Futurabond DC) dental adhesives. Materials and Methodology: One hundred eight freshly extracted human premolar teeth in age group between 20 to 30 years of age were collected. The specimens were randomly divided into three groups of 36 each. Each tooth sample was ground with a diamond bur to remove the enamel layer to obtain a flat occlusal surface. Each group was further divided into two subgroups depending on the type of surface treatment of either 2% chlorhexidine or 5.25% Sodium Hypochlorite solution. Then each sample was cured for 20 seconds and then 2mm thickness of universal restorative composite was placed over the bonded dentinal surface and light cured it for 40 seconds. After 24 hours each specimen was seated on the PVC zig with the help of dental stone. After that shear bond strength was measured using a universal testing machine followed by statstical evaluation of the data obtained. Results: The obtained results showed that specimen treated with sodium hypochlorite showed better shear bond strength when compared to the specimen treated with chlorhexidine Digluconate. The highest value of bond strength was exhibited by 7th generation adhesive resin Adaper Easy Bond(87.1111 N) treated with sodium hypochlorite and the lowest value was observed with 8th generation adhesive resin Futurbond DC(31.2778 N) treated with chlorhexidine digluconate. Significant difference between the bond strengths of both 8th generation bonding agents (Tetric N-Bond and Futurabond DC) were observed. Conclusion: The cavity disinfectants such as Sodium hypochlorite and Chlorhexidine Digluconate had significant influence on the shear bond strength of 7th and 8th generation Self-ethch bonding agents.
Keywords: Sodium Hypochlorite, Chlorhexidine Digluconate, Shear Bond Strength.
