School of Dentistry, Post-Graduate Program in Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
School of Dentistry, Department of Surgery and Orthopedics, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
Eur Arch Paediatr Dent. 2022 Oct;23(5):813-820. doi: 10.1007/s40368-022-00730-w. Epub 2022 Jul 26.
This in vitro study evaluated the microshear bond strength (μSBS) of a universal adhesive after silver diammine fluoride (SDF) application at different concentrations on carious dentinal lesions in primary teeth.
Flat dentin carious-induced surfaces from 40 primary molars were randomly assigned to four experimental groups: without SDF treatment (control), 12% SDF, 30% SDF, or 38% SDF application. After 14 days of storage in artificial saliva at 37 °C, a universal adhesive system (Scotchbond Universal, 3 M ESPE) was applied in the etch-and-rinse mode and resin composite cylinders were built (0.72 mm). After 24 h of water storage, the μSBS test was performed and the failure mode was determined. Data were analysed using one-way ANOVA and Tukey's post hoc tests (α = 0.05).
The application of 38% SDF resulted in higher μSBS mean than control and use of 12% SDF (p = 0.006). No significant differences were observed among control, 12% SDF, and 30% SDF. All specimens tested showed adhesive/mixed failure.
The use of SDF does not jeopardise the bonding of a universal adhesive applied in the etch-and-rinse mode to carious dentinal lesions in primary teeth, irrespective of the product concentration.
本体外研究评估了银双胺氟化物（SDF）以不同浓度应用于乳牙龋齿病变后通用粘结剂的微剪切粘结强度（μSBS）。
从 40 颗乳磨牙中随机选择平坦的牙本质龋诱导表面，将其分为四组实验组：不进行 SDF 处理（对照组）、12% SDF、30% SDF 或 38% SDF 处理。在 37°C 的人工唾液中储存 14 天后，采用酸蚀-冲洗型通用粘结剂系统（Scotchbond Universal，3M ESPE）进行处理，并构建树脂复合圆柱体（0.72mm）。水储存 24 小时后，进行 μSBS 测试并确定失效模式。使用单因素方差分析和 Tukey 事后检验（α=0.05）对数据进行分析。
与对照组和使用 12% SDF 相比，应用 38% SDF 导致更高的 μSBS 均值（p=0.006）。对照组、12% SDF 和 30% SDF 之间没有观察到显著差异。所有测试的标本均表现出粘结剂/混合性失效。
无论产品浓度如何，SDF 的使用都不会危及酸蚀-冲洗型通用粘结剂在乳牙龋齿病变中的粘结强度。
