Fluoride release and recharge in giomer, compomer and resin composite
Fluoride release and recharge in giomer, compomer and resin composite
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DOI：
10.1016/j.dental.2003.11.009
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发表时间：
2004-11-01
期刊：
影响因子：
5
通讯作者：
McCabe, JF
中科院分区：
文献类型：
--
作者：
Itota, T;Carrick, TE;McCabe, JF
目标。本研究的目的是检查含有氟化玻璃填料的树脂基材料的氟化物再充电和释放能力，以确定材料的玻璃离聚物基体的程度是否影响这些性能。方法。本研究使用了三种具有不同比例的玻璃填料周围水凝胶基质的材料，即：Reactmer Paste、Dyract AP 和 Xeno CF。将每种材料的五个圆盘样品放入蒸馏水/去离子水中，并测量 38 天内的氟化物释放量。对于氟化物再充电，将圆盘暴露于 250 ppm F 溶液 1 小时，并使用离子选择电极（总氟离子）和离子色谱法（游离氟离子）测定再充电前和再充电后的氟化物释放量。 结果。每种材料在初始阶段释放的总氟化物和游离氟化物量按降序排列为 Reactmer Paste > Dyract AP > Xeno CF（p < 0.05，ANOVA 和 Scheffe 测试）。补充氟化物后，Reactmer 糊剂比其他材料释放出更多的氟化物。 Dyract AP 和 Xeno CF 充电后氟化物释放总量相似。对于 Xeno CF 充电后释放的总氟化物量显着大于游离氟化物，但对于 Dyract AP 充电后释放的总氟化物和游离氟化物之间没有显着差异（p = 0.05，配对 t 检验）。这些结果表明，玻璃填料的玻璃离聚物基质的程度对于树脂基材料的氟化物释放和再充电能力起着重要作用。 (C) 2004 年牙科材料学会。由爱思唯尔有限公司出版。保留所有权利。
Objectives. The aim of this study was to examine the fluoride recharging and releasing abilities of resin-based materials containing fluoridated glass filler to determine whether the extent of the glass-ionomer matrix of the material affects these properties.Methods. Three materials having a different proportion of the hydrogel matrix surrounding the glass filler, namely: Reactmer paste, Dyract AP and Xeno CF, were used for this study. Five disk specimens of each material were placed into distilled/ deionized water and the fluoride release measured during 38 days. For fluoride recharge the disks were exposed to 250 ppm F solution for 1 h and the pre- and post-recharge fluoride release were determined using an ion-selective electrode (total fluoride ions) and ion chromatography (free fluoride ions).Results. The amounts of total and free fluoride release from each material at the initial period in descending order were Reactmer paste > Dyract AP > Xeno CF (p < 0.05, ANOVA and Scheffe's test). After fluoride recharge, Reactmer paste showed a greater amount of fluoride release than the other materials. Dyract AP and Xeno CF showed a similar total level of fluoride release after recharging. For Xeno CF the amount of total fluoride released after recharging was significantly greater than that of free fluoride, but there was no significant difference between total and free fluoride released after recharging for Dyract AP (p = 0.05, paired t-test).Significance. These results suggested that the extent of the glass-ionomer matrix of the glass filler played an important role for fluoride-releasing and recharging abilities of the resin-based materials. (C) 2004 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.