Utama Mohammad Dharma, Ariani Nina, Machmud Edy, Mude Acing Habibie, Dharma Muhammad Akira Takashi, Taqwim Aksani, Risnawati Risnawati
Department of Prosthodontics, Faculty of Dentistry, Hasanuddin University, Perintis Kemerdekaan KM. 10 Street, Makassar 90245, Indonesia.
Department of Prosthodontics, Faculty of Dentistry, Indonesia University, 4 Salemba Raya Street, Jakarta Pusat 10430, Indonesia.
Biomimetics (Basel). 2025 Apr 10;10(4):235. doi: 10.3390/biomimetics10040235.
Although glass ionomer cements (GIC) are widely used in dental restorations, their long-term performance remains limited by their mechanical properties, including surface roughness and fracture resistance. This study investigates the synthesis of nano-silica from sp. diatoms through the sol-gel process and its application in influencing the mechanical and physical properties of GIC luting materials. A control group and three experimental groups of different nano-silica concentrations (1%, 3%, and 5%) were compared. Several analyses, including confocal laser scanning microscopy (CLSM), scanning electron microscopy (SEM), and universal testing machines (UTM), were used to determine layer thickness, surface roughness, compressive strength, and tensile strength. Statistical analysis exhibited significant differences between the groups ( < 0.05). The 3% nano-silica group indicated an optimal compromise between mechanical strength and surface smoothness, while the 5% group showed increased thickness and roughness with slightly lower strength. These findings emphasize that the sol-gel-derived nano-silica from sp. potentially enhances certain characteristics of GIC for possible dental cementation. Further research is needed to determine the long-term durability and bioactivity of these modified materials.
尽管玻璃离子水门汀（GIC）在牙科修复中被广泛使用，但其长期性能仍受其机械性能的限制，包括表面粗糙度和抗断裂性。本研究通过溶胶-凝胶法研究了从特定硅藻中合成纳米二氧化硅及其在影响GIC粘接材料的机械和物理性能方面的应用。比较了一个对照组和三个不同纳米二氧化硅浓度（1%、3%和5%）的实验组。使用了几种分析方法，包括共聚焦激光扫描显微镜（CLSM）、扫描电子显微镜（SEM）和万能试验机（UTM）来测定层厚度、表面粗糙度、抗压强度和抗拉强度。统计分析显示各组之间存在显著差异（<0.05）。3%纳米二氧化硅组在机械强度和表面光滑度之间表现出最佳折衷，而5%组显示厚度和粗糙度增加，强度略低。这些发现强调，从特定硅藻中通过溶胶-凝胶法获得的纳米二氧化硅可能会增强GIC的某些特性，用于可能的牙科粘接。需要进一步研究来确定这些改性材料的长期耐久性和生物活性。
