Objectives: This study aimed to compare the microtensile bond strength (µSBS) of 5th-generation bonding agents to universal (one-bottle) bonding agents on dentin of posterior teeth. Methods: Three different 5th-generation and three universal bonding agents from Charisma (Kulzer GmbH, Germany), 3M (3M ESPE, United States), and Tokuyama (Tokuyama Corporation, Japan) were tested using the microtensile bond strength (μ-SBS). Each adhesive system was applied to dentin surfaces bonded to composite resin, with ten samples per group (n=10). All six groups underwent μ-SBS testing. Results: The generation of bonding agent significantly influenced µSBS (pth generation dental adhesives exhibited higher microtensile bond strength than universal dental adhesives. Conclusion: This study confirms that 5th-generation bonding agents provide superior microtensile bond strength compared to universal adhesives when bonding composite resin to dentin. These findings highlight the importance of adhesive selection in achieving durable restorations.
Yammine et al. (Wed,) studied this question.