Evaluation of the Shear Bond Strength of Nanocomposite on Carious and Sound Deciduous Dentin

Aim: The aim of the study was to evaluate and compare the shear bond strength of conventional composites with nanocomposites in carious and sound deciduous dentin with the use of self-etching adhesive. Methodology: Human primary molars were ground to obtain flat dentin surfaces and divided into two groups: Carious dentin and sound dentin group. The carious teeth specimens were prepared by removing infected dentin and area with affected dentin was used for bonding composite. Teeth with carious and sound dentin were subdivided in two groups (n = 15) based on the type of the composite into conventional composite group and nanocomposite group. The composite was bonded to the teeth with self-etching adhesive. All the bonded specimens were stored in distilled water for 24 hours at 37°C before shear bond testing. Independent t-test and analysis of variance were applied to the results. Results: The results indicated that the nanocomposite offered significantly higher bond strength compared to conventional composite. In addition presence of affected dentin significantly reduced the bond strength of both the composite types. How to cite this article: Deshmukh S, Nandlal B. Evaluation of the Shear Bond Strength of Nanocomposite on Carious and Sound Deciduous Dentin. Int J Clin Pediatr Dent 2012;5(1): 25-28.