World Journal of Dentistry

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VOLUME 13 , ISSUE 5 ( September-October, 2022 ) > List of Articles


An In Vitro Study of Shear Bond Strength of Various Dentin Bonding Agents in Class V Cavities

Nisha Garg, Komalpreet Kaur, Sandeep Gupta, Virinder Goyal, Hyeon C Kim

Keywords : Bond strength, Bonding agents, Class V cavities, Micromechanical bonding, Molecular dispersion technology

Citation Information : Garg N, Kaur K, Gupta S, Goyal V, Kim HC. An In Vitro Study of Shear Bond Strength of Various Dentin Bonding Agents in Class V Cavities. World J Dent 2022; 13 (5):465-468.

DOI: 10.5005/jp-journals-10015-2092

License: CC BY-NC 4.0

Published Online: 22-07-2022

Copyright Statement:  Copyright © 2022; The Author(s).


Aim: To compare and assess the shear bond strength of 4th, 5th, 6th, and 7th generation dentin bonding agents in class V cavities. Materials and methods: Freshly extracted 120 premolars were randomly divided into four different groups, that is, 4th generation (3M Multipurpose Scotchbond adhesive: Group 4G), 5th generation (Prime and Bond: Group 5G), 6th generation (Clearfil SE: Group 6G), and 7th generation (Tetric-N-Bond: Group 7G) dentin bonding agents. Class V cavities were prepared in all samples and dentin bonding agents were applied as per the manufacturer's instructions after placing a 26-gauge orthodontic wire at base of the cavity and cavities were then restored with composite resin. The cavities were then stored in distilled water for a period of 24 hours and the shear bond strength was evaluated after 24 hours using the Universal Instron strength testing machine. Statistical analysis was done using one-way analysis of variance (ANOVA) and post hoc Tukey's test to compare the bond strength among four groups. Results: Group 6G showed highest mean shear bond strength while the group 5G showed the lowest (p < 0.05). Scanning electron microscopic (SEM) results showed gap-free resin dentin interface and hybrid layer in group 6G while maximum gap was seen at the resin-dentin interface in group 5G. Conclusion: Based on the data revealed, it appears that contemporary self-etching dentin bonding agent (6th generation) represented the highest bond strength and has a significant difference than other groups. Clinical significance: Based on results of this study, we can select the bonding agent of high bond strength so as to improve the success of the restoration.

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