Dent Mater J:粉液比对含预反应球形玻璃填料玻璃离聚物粘固剂的物理特性和氟化物释放的影响

2020-02-23 lishiting MedSci原创

这篇研究的目的是为了评估粉液比(PLR)对含预反应球形玻璃填料(SPG)玻璃离聚物粘固剂(GICs)的固化时间、物理特性和氟化物释放的影响。

这篇研究的目的是为了评估粉液比(PLR)对含预反应球形玻璃填料(SPG)玻璃离聚物粘固剂(GICs)的固化时间、物理特性和氟化物释放的影响。

研究按照PLR 1:1, 1.5:1, 2:1, 2.5:1, 3:1的比例混合SPG和Fuji IX Universal liquid制备GICs。结果显示,随着PLR比例的增加,材料的固化时间从221秒减至51秒。PLR比例的增加会减少累积氟化物的释放(33 to 13 ppm)。实验性GICs (1.6-1.8×10-8 cm2/s)氟化物的扩散系数与Fuji IX Universal (1.6×10-8 cm2/s)相近。PLR比例从2:1至3:1的抗压强度(93-140 MPa)与Fuji IX Universal (124 MPa)相近。

这些结果表明,粉液比的增加会降低GICs的固化时间、氟化物释放和抗压强度。然而,PLR比例超过2:1后的实验性GICs的固化时间和强度符合ISO标准。

原始出处:

Panpisut P, Monmaturapoj N, et al. The effect of powder to liquid ratio on physical properties and fluoride release of glass ionomer cements containing pre-reacted spherical glass fillers. Dent Mater J. 2020 Feb 7. doi: 10.4012/dmj.2019-097. [Epub ahead of print]

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