Brkanović Sandra, Ivanišević Ana, Miletić Ivana, Mezdić Dražen, Jukić Krmek Silvana
School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia.
Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Lučićeva 5, 10000 Zagreb, Croatia.
Materials (Basel). 2021 Feb 5;14(4):755. doi: 10.3390/ma14040755.
The purpose of the study was to determine the wear rate of Equia Forte HT Fil with Equia Forte Coat or without coating and compare it with Fuji IX GP high-viscosity glass ionomer cement (GIC) in conditions with acid load or at neutral pH. The samples were stored for 7 days: (1) in artificial saliva, (2) in artificial saliva and cyclically exposed to low pH, and (3) in distilled water and cyclically exposed to low pH. Wear was determined by measuring the difference in mass before and after brushing in an abrasion testing device. The wear of Fuji IX GP was significantly higher than that of Equia Forte HT Fil with or without coating ( = 0.000). The difference between Equia Forte HT Fil with and without Coat was not statistically significant ( < 0.803). The differences in wear resistance between samples stored in saliva and in distilled water were not significant ( = 0.588). Periodic exposure to the low pH solution significantly affected the wear resistance of all materials ( = 0.000). Equia Forte HT Fil was more resistant to wear than Fuji IX GP in all storage conditions. A resinous coat did not significantly increase wear resistance.
本研究的目的是测定有Equia Forte Coat涂层或无涂层的Equia Forte HT Fil的磨损率，并将其与Fuji IX GP高粘度玻璃离子水门汀（GIC）在有酸负荷或中性pH条件下进行比较。将样本储存7天：（1）置于人工唾液中；（2）置于人工唾液中并周期性暴露于低pH环境；（3）置于蒸馏水中并周期性暴露于低pH环境。通过在磨损测试装置中测量刷牙前后的质量差异来确定磨损情况。Fuji IX GP的磨损显著高于有涂层或无涂层的Equia Forte HT Fil（ = 0.000）。有涂层和无涂层的Equia Forte HT Fil之间的差异无统计学意义（ < 0.803）。储存在唾液和蒸馏水中的样本之间的耐磨性差异不显著（ = 0.588）。周期性暴露于低pH溶液会显著影响所有材料的耐磨性（ = 0.000）。在所有储存条件下，Equia Forte HT Fil比Fuji IX GP更耐磨。树脂涂层并未显著提高耐磨性。
