A comparison of fluoride release from various dental materials
A comparison of fluoride release from various dental materials
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DOI：
10.1016/s0300-5712(97)00011-0
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发表时间：
1998-03-01
影响因子：
4.4
通讯作者：
Kotze, TJV
中科院分区：
文献类型：
--
作者：
Grobler, SR;Rossouw, RJ;Kotze, TJV
目标。本研究的目的是测定4种树脂修饰的玻璃离子(富士II LC、Vitremer、Enforce&Advance)、多酸修饰的复合树脂(Dyract Commer)和粘结剂(OptiBond)的相对短期和长期氟释放。所有的材料都是按照制造商的要求准备的。将所述材料的圆盘悬浮在水中长达300天，并在选定的时间用电位法测定非累积的24小时氟释放。第一天的氟化物释放量分别为Vitremer(1.46微克毫米(-2))、Advance(1.18微克毫米(-2))、富士(1.08微克毫米(-2))、Optiond(0.33微克毫米(-2))、Dyract(0.31微克毫米(-2))和Execute(0.15微克毫米(-2))。在第二天之后，序列略有变化，并在300天的剩余时间内保持大致相同。60-200天期间氟的释放量也较前一时期有所增加。结论：总体上，大部分氟化物是提前释放的，而不是富士II LC或Vitremer。对于大多数材料，氟化物在300天后仍会释放。此外，即使是一层薄薄的粘结剂在开始时也会释放出相对较高的氟化物(体积最大)。由此推断，即使是相对离子的释放：数量的氟化物也可能导致微渗漏缝隙中的氟化物浓度显著增加。(C)1998爱思唯尔科学有限公司。保留所有权利。
Objective. The aim of this study was to determine, in vitro, the relative short-and long-term fluoride release from four resin-modified glass ionomers (Fuji II LC, Vitremer, Enforce & Advance), a polyacid-modified composite resin (Dyract compomer) and a bonding agent (OptiBond).Methods. All the materials were prepared as outlined by the manufacturers. Circular discs of the materials mentioned were suspended in water for up to 300 days and the non-cumulative 24-h fluoride release was determined potentiometrically at chosen times.Results. The amounts of fluoride released during the first day were Vitremer (1.46 mu g mm(-2)), Advance (1.18 mu g mm(-2)), Fuji (1.08 mu g mm(-2)), Optibond (0.33 mu g mm(-2)), Dyract (0.31 mu g mm(-2)) and Enforce (0.15 mu g mm(-2)). After the second day the sequence changed slightly and remained approximately the same for the rest of the 300-day period. There was also an increase in the fluoride release during the 60-200-day period relative to the previous period.Conclusion: In general the most fluoride was released by Advance and not by Fuji II LC or Vitremer. For most materials, fluoride is still released after 300 days. Furthermore, even a thin layer of bonding agent released a relatively high amount of fluoride (volume-wise the most) at the beginning. II is deduced that even the release of relatively ion: amounts of fluoride may result in significant concentrations of fluoride in a microleakage gap. (C) 1998 Elsevier Science Ltd. All rights reserved.