Development of a Novel Optimal Resin-bonding System for Er:YAG Laser-irradiated Dentin: Effects of 3-step Resin-modified Glass-ionomer Bonding System Incorporating Acid-conditioning and Priming on Initial Bond Strength to Er:YAG Laser-irradiated Dentin and its Durability after Thermal Loading

With the ultimate aim of developing a novel optimal dentin-bonding system for Er:YAG laser-irradiated dentin, we investigated the adhesion-promoting effects of acid-conditioning and priming with hydrophilic monomers on the bonding performance of the resin-modified glass-ionomer bonding system (RMGI) to laser-irradiated dentin. Results showed that acid-conditioning with a solution of 10% citric acid and 2% ferric chloride followed by priming with 4-methacryloxyethyl trimellitic acid and 2-hydroxyethyl methacrylate was effective for improving the early bond strength and bonding durability of RMGI to Er:YAG laser-irradiated dentin.