Nonthermal Atmospheric Plasma Promotes Bonding Between Adhesive Monomers and Zirconia

作者：Xiaolan Chen, Chengcheng Yu, Lei Hua, Qi Liu · 发表于：Journal of Esthetic and Restorative Dentistry · 年份：2024 · DOI：10.1111/jerd.13338 · 被引用次数：5 · 研究领域：Surface Modification and Superhydrophobicity、Fiber-reinforced polymer composites、Dental materials and restorations

OBJECTIVE: To investigate whether nonthermal atmospheric plasma (NTAP) can promote bonding between commonly used adhesive monomers and zirconia. MATERIALS AND METHODS: The zirconia surface and monomers (HEMA, BisGMA, TEGDMA, and MDP) were treated with different NTAP approaches (10 w, 30 s), and the surface characteristics and chemical structures between the zirconia surface and monomers were verified by the contact angle, scanning electron microscopy (SEM), attenuated total reflectance Fourier transform infrared (ATR/FT-IR) spectroscopy, and x-ray photoelectron spectroscopy (XPS). Scotchbond Universal adhesive with two different resin cements, RelyX Ultimate and RelyX Unicem 2, was applied, followed by NTAP-aided clinical procedures, and then microtensile bond strength test (μTBS) and failure mode evaluation were tested for preliminary mechanical properties assessment. One-way ANOVA was employed for the statistical analysis. RESULTS: The contact angle analysis, SEM, and ATR-FTIR confirmed that NTAP can promote the polymerization of BisGMA, TEGDMA, and MDP on the zirconia surface, while XPS confirmed that NTAP can induce a chemical reaction between MDP and zirconia. CONCLUSIONS: Nonthermal atmospheric plasma can increase the affinity between selected monomers and zirconia and promote the chemical bonding strength between phosphate monomers and zirconia; besides, it can enhance the bonding strength of two different adhesive systems. CLINICAL SIGNIFICANCE: The mechanism of how N...