Hamdy Tamer M
Restorative and Dental Materials Department, Oral and Dental Research Institute, National Research Centre (NRC), Giza, Dokki, 12622, Egypt.
BMC Oral Health. 2024 Apr 24;24(1):487. doi: 10.1186/s12903-024-04261-2.
Zinc-oxide eugenol (ZOE) cements are among the most used temporary materials in dentistry. Although ZOE has advantages over other temporary fillers, its mechanical strength is weaker, so researchers are working to improve it. E-glass fibers have emerged as promising reinforcing fibers in recent years due to their strong mechanical behavior, adequate bonding, and acceptable aesthetics.
To evaluate and compare the compressive strength, surface microhardness, and solubility of the ZOE and those reinforced with 10 wt.% E-glass fibers.
A total of 60 ZEO specimens were prepared; 30 specimens were reinforced with 10 wt.% E-glass fibers, considered modified ZOE. The characterization of the E-glass fibers was performed by XRF, SEM, and PSD. The compressive strength, surface microhardness, and solubility were evaluated. Independent sample t-tests were used to statistically assess the data and compare mean values (P ≤ 0.05).
The results revealed that the modified ZOE showed a significantly higher mean value of compressive strength and surface microhardness while having a significantly lower mean value of solubility compared to unmodified ZOE (P ≤ 0.05).
The modified ZOE with 10 wt.% E-glass fibers had the opportunity to be used as permanent filling materials.
氧化锌丁香酚（ZOE）水门汀是牙科中最常用的临时材料之一。尽管ZOE比其他临时充填材料具有优势，但其机械强度较弱，因此研究人员正在努力对其进行改进。近年来，E玻璃纤维因其强大的机械性能、良好的粘结性和可接受的美观性而成为有前景的增强纤维。
评估和比较ZOE以及用10 wt.% E玻璃纤维增强的ZOE的抗压强度、表面显微硬度和溶解性。
共制备60个ZEO标本；30个标本用10 wt.% E玻璃纤维增强，视为改性ZOE。通过XRF、SEM和PSD对E玻璃纤维进行表征。对抗压强度、表面显微硬度和溶解性进行评估。采用独立样本t检验对数据进行统计学评估并比较均值（P≤0.05）。
结果显示，与未改性的ZOE相比，改性ZOE的抗压强度和表面显微硬度均值显著更高，而溶解性均值显著更低（P≤0.05）。
含10 wt.% E玻璃纤维的改性ZOE有机会用作永久充填材料。
