Purpose: High-viscosity glass ionomer cements (HV-GICs) are reinforced with ultrafine, highly reactive glass particles, as well as a higher-molecular-weight polyalkenoic acid component. Silver diammine fluoride (SDF) is an agent with promising activity against active caries. The present study aimed to evaluate the shear bond strength (SBS) and interfacial morphology of a new HV-GIC bonded to dentin after treatment with various adhesive protocols including SDF.

Methods: HV-GIC cylinders were bonded to dentin after various surface treatments (6 groups, n = 22): water; polyalkenoic acid; SDF; SDF + potassium iodide (KI); SDF + KI + polyalkenoic acid; SDF + KI + two weeks of storage in water + polyalkenoic acid. For each group, 20 samples were tested for SBS after 48 h, and 2 samples were cut and subjected to environmental scanning electron microscopy (E-SEM) and energy-dispersive X-ray (EDX) analysis.

Results: No significant differences in SBS were found between any of the protocols tested. However, E-SEM and EDX images showed different interfaces when SDF was applied.

Conclusion: SDF has no influence on the adhesion of HV-GIC to sound dentin and could potentially improve the cario-resistance of the dentin/HV-GIC interface.

目的：高粘度玻璃离聚物水泥（HV-GIC）用超细，高反应性的玻璃颗粒以及较高分子量的聚链烯酸组分增强。氟化二氨银（SDF）是一种对活性龋齿有希望的活性的药物。本研究旨在评估在用包括SDF在内的各种粘合方案处理后，一种新的结合到牙本质上的HV-GIC的剪切粘合强度（SBS）和界面形态。

方法：将HV-GIC气瓶经过各种表面处理（6组，n = 22）：水；将其粘合到牙本质上。聚链烯酸 自卫队; SDF +碘化钾（KI）; SDF + KI +聚链烯酸; SDF + KI +在水中+聚链烯酸中储存两周。对于每组，在48小时后测试了20个样品的SBS，切下2个样品，并进行了环境扫描电子显微镜（E-SEM）和能量色散X射线（EDX）分析。

结果：在所测试的任何协议之间，SBS均未发现显着差异。但是，当使用SDF时，E-SEM和EDX图像显示出不同的界面。

结论： SDF对HV-GIC与健全牙本质的粘附没有影响，并可能改善牙本质/ HV-GIC界面的抗龋齿性。