Comparative Evaluation of Shear Bond Strength of 6th, 7th and 8th Generation Bonding Agent to Dentine: An In-Vitro Study

Abstract

Background: Adhesive dentistry has progressed through multiple generations; each designed to simplify bonding procedures and enhance strength.

Aim: To compare the shear bond strength (SBS) of 6th-generation (Adper SE Plus), 7th-generation (Adper Easy One), and 8th-generation (G-Premio Bond) bonding agents.
Materials and Methods: Sixty extracted human premolars were sectioned to expose flat dentin surfaces and randomly divided into three groups (n=20 each). Group I: 6th-generation Adper SE Plus, Group II: 7th-generation Adper Easy One, Group III: 8th-generation G-Premio Bond. Standard composite cylinders were bonded and subjected to SBS testing using a universal testing machine.

Results: G-Premio Bond (8th-gen) showed the highest SBS, followed by Adper SE Plus (6th-gen), while Adper Easy One (7th-gen) showed the lowest values. Differences were statistically significant (p < 0.05).

Conclusion: The newer 8th-generation adhesive demonstrated superior bond strength compared to 6th and 7th-generation systems.

KEYWORDS

Bonding agent, Shear bond strength, Adhesive