Basra Arshjot Singh, Sedani Shweta, Phaye Lavannya, Khetan Rohan
Department Of Conservative Dentistry and Endodontics, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, India.
Biomater Investig Dent. 2025 Feb 14;12:43074. doi: 10.2340/biid.v12.43074. eCollection 2025.
The purpose of this study was to evaluate the effect of silver diamine fluoride (SDF) on microhardness and microleakage of composite and glass ionomer cement restorations.
Cavities were prepared in 28 extracted teeth and restored according to four regimens (GIC, composite, GIC and SDF conditioned, composite and SDF conditioned). The restored teeth were and autoclaved and then exposed to cariogenic challenge (inoculated with and ) for 30 days. The restored teeth were sectioned mesio-distally. One half was subjected to microleakage testing (dye penetration using 2% methylene blue) and the other to Vickers hardness test.
Group 4 SDF + Composite had the highest mean microleakage at 1.59 ± 0.02 (mm), and Group 1 (GIC) and Group 3 (Composite) had the lowest mean microleakage (0.63 ± 0.009 mm and 0.63 ± 0.02 mm, respectively). The highest mean microhardness (HV) was observed in Group 3 (Composite) at 327 ± 2.16 and lowest in Group 2 (GIC + SDF) at 283 ± 1.95. Results were statistically significant with a value < 0.05.
SDF conditioning negatively impacted microhardness and increased microleakage, which could negatively impact the longevity of restorations. Therefore, in this study, SDF was not suitable as a treatment to decrease the occurrence of secondary caries.
本研究旨在评估氟化银胺（SDF）对复合树脂和玻璃离子水门汀修复体的显微硬度和微渗漏的影响。
在28颗离体牙上制备窝洞，并根据四种方案进行修复（玻璃离子水门汀、复合树脂、经SDF处理的玻璃离子水门汀、经SDF处理的复合树脂）。修复后的牙齿进行高压灭菌，然后接受致龋挑战（接种变形链球菌和远缘链球菌）30天。将修复后的牙齿沿近远中方向切片。一半进行微渗漏测试（使用2%亚甲蓝进行染料渗透），另一半进行维氏硬度测试。
第4组SDF+复合树脂的平均微渗漏最高，为1.59±0.02（mm），第1组（玻璃离子水门汀）和第3组（复合树脂）的平均微渗漏最低（分别为0.63±0.009 mm和0.63±0.02 mm）。第3组（复合树脂）的平均显微硬度（HV）最高，为327±2.16，第2组（玻璃离子水门汀+SDF）最低，为283±1.95。结果具有统计学意义，P值<0.05。
SDF处理对显微硬度有负面影响并增加了微渗漏，这可能对修复体的寿命产生负面影响。因此，在本研究中，SDF不适合作为减少继发龋发生的治疗方法。
