添加二氧化硅颗粒对树脂改性玻璃离子水门汀某些性能的影响。
Effects of adding silica particles on certain properties of resin-modified glass-ionomer cement.
作者信息
Felemban Nayef H, Ebrahim Mohamed I
机构信息
Department of Orthodontics, Faculty of Dentistry, Taif University, Taif, Saudi Arabia.
Department Restorative Dentistry, Faculty of Dentistry, Taif University, Taif, Saudi Arabia.
出版信息
Eur J Dent. 2016 Apr-Jun;10(2):225-229. doi: 10.4103/1305-7456.178318.
OBJECTIVE
This study was conducted to evaluate the effect of incorporation of silica particles with different concentrations on some properties of resin-modified glass ionomer cement (RMGIC): Microleakage, compressive strength, tensile strength, water sorption, and solubility.
MATERIALS AND METHODS
Silica particle was incorporated into RMGIC powder to study its effects, one type of RMGIC (Type II visible light-cured) and three concentrations of silica particles (0.06, 0.08, and 0.1% weight) were used. One hundred and twenty specimens were fabricated for measuring microleakage, compressive strength, tensile strength, water sorption, and solubility.
STATISTICAL ANALYSIS
One-way analysis of variance and Tukey's tests were used for measuring significance between means where P ≤ 0.05.
RESULTS
RMGIC specimens without any additives showed significantly highest microleakage and lowest compressive and tensile strengths.
CONCLUSION
Silica particles added to RMGIC have the potential as a reliable restorative material with increased compressive strength, tensile strength, and water sorption but decreased microleakage and water solubility.
目的
本研究旨在评估掺入不同浓度二氧化硅颗粒对树脂改性玻璃离子水门汀（RMGIC）某些性能的影响：微渗漏、抗压强度、抗拉强度、吸水性和溶解性。
材料与方法
将二氧化硅颗粒掺入RMGIC粉末中以研究其效果，使用了一种类型的RMGIC（II型可见光固化）和三种浓度的二氧化硅颗粒（0.06%、0.08%和0.1%重量）。制备了120个样本用于测量微渗漏、抗压强度、抗拉强度、吸水性和溶解性。
统计分析
采用单因素方差分析和Tukey检验来测量均值之间的显著性，其中P≤0.05。
结果
未添加任何添加剂的RMGIC样本显示出显著最高的微渗漏以及最低的抗压强度和抗拉强度。
结论
添加到RMGIC中的二氧化硅颗粒有潜力成为一种可靠的修复材料，具有更高的抗压强度、抗拉强度和吸水性，但微渗漏和水溶性降低。
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