新型大块充填碱式玻璃离子体的氟离子释放及碱化潜力比较
Comparison of fluoride ion release and alkalizing potential of a new bulk-fill alkasite.
作者信息
Gupta Nupur, Jaiswal Shikha, Nikhil Vineeta, Gupta Sachin, Jha Padmanabh, Bansal Parul
机构信息
Department of Conservative Dentistry and Endodontics, Subharti Dental College and Hospital, Meerut, Uttar Pradesh, India.
出版信息
J Conserv Dent. 2019 May-Jun;22(3):296-299. doi: 10.4103/JCD.JCD_74_19.
Abstract
AIM
This study was conducted to evaluate and compare fluoride ion release by Cention-N (self-cure and light-cure) and conventional glass-ionomer cement (GIC) at different pH and time intervals.
METHODOLOGY
Cavities of similar dimensions were prepared in mandibular molars and restored with Cention-N (by self-cure and light-cure techniques) and GIC. Samples were stored in deionized water, and the cumulative fluoride ion release and change in pH were assessed utilizing spectrophotometer and pH meter, respectively, at the end of 7 days, 14 days, and 21 days. The data thus obtained were statistically analyzed.
RESULTS
All the tested materials released fluoride ions in both acidic and neutral pH at all time intervals, and the fluoride ion release was significantly higher (<0.05) in acidic pH as compared to neutral pH except in GIC. All the groups showed a statistically significant increase in pH in acidic medium, whereas no significant increase was observed in neutral medium.
CONCLUSIONS
Cention-N (self-cure) has the highest fluoride ion release and alkalizing potential in acidic pH as compared to Cention-N (light-cure) and GIC.
摘要
目的
本研究旨在评估和比较Cention-N（自凝和光固化）与传统玻璃离子水门汀（GIC）在不同pH值和时间间隔下的氟离子释放情况。
方法
在下颌磨牙制备相似尺寸的窝洞，并用Cention-N（通过自凝和光固化技术）和GIC进行修复。将样本储存在去离子水中，分别在7天、14天和21天结束时，使用分光光度计和pH计评估累积氟离子释放量和pH值变化。对由此获得的数据进行统计学分析。
结果
所有测试材料在所有时间间隔的酸性和中性pH值下均释放氟离子，除GIC外，酸性pH值下的氟离子释放量显著高于（<0.05）中性pH值。所有组在酸性介质中pH值均有统计学意义的升高，而在中性介质中未观察到显著升高。
结论
与Cention-N（光固化）和GIC相比，Cention-N（自凝）在酸性pH值下具有最高的氟离子释放量和碱化潜力。
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