An Evaluation of Shear Bond Strength of Composite Resin to Enamel under Various Saliva Contaminated Conditions: An in vitro Study

Abstract

ABSTRACT To produce good adhesion between composite resin and etched enamel surface, it is necessary to form a microscopi- cally intimate contact between them. Contaminants, like saliva, may interfere with such bonding. Salivary contamination may reduce the bond strength between composite resin and the enamel by 40 to 60%. Recent studies have suggested that only rewashing and drying of the etched and saliva contaminated enamel surface is sufficient in restoring bond strength to the normal ideal condition. Purpose To evaluate the effect of saliva contamination on the shear bond strength of composite resin to enamel by using different parameters. Materials and methods The highest mean shear bond strength of composite resin was obtained on the uncontami- nated enamel surface, and the lowest mean shear bond strength was obtained on the saliva contaminated moist enamel surface. Results The mean shear bond strength of composite resin to saliva contaminated, washed and air-dried enamel surface was less than the mean shear bond strength to the dry enamel surface. Conclusion This suggests that only rewashing of the saliva contaminated enamel surface is not enough in achieving bond strength equal to that of the uncontaminated enamel surface. How to cite this article Kale A, Kamra A, Kale Y, Khalikar S. An Evaluation of Shear Bond Strength of Composite Resin to Enamel under Various Saliva Contaminated Conditions: An in vitro Study. Int J Prosthodont Restor Dent 2014;4(4):101-104.