SHORT-TERM FLUORIDE RELEASE UPTAKE OF GLASS-IONOMER RESTORATIVES
SHORT-TERM FLUORIDE RELEASE UPTAKE OF GLASS-IONOMER RESTORATIVES
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DOI：
10.1016/0109-5641(95)80041-7
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发表时间：
1995-03-01
期刊：
影响因子：
5
通讯作者：
SWIFT, EJ
中科院分区：
文献类型：
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作者：
DIAZARNOLD, AM;HOLMES, DC;SWIFT, EJ
目标。测量了四种玻璃离聚物修复剂的短期氟化物释放/吸收，并与暴露于三种商用氟化物凝胶后的氟化物释放进行比较。方法。测试的材料有： 1) Ketac-Fil (ESPE GmbH)； 2) Ketac-Silver (ESPE GmbH)； 3）Photac-Fil（ESPE GmbH）； 4) Fuji II LC (GC Corp.)。每种材料制作 20 个圆盘，并储存在 37 摄氏度的去离子水中。在 7 天内，每隔 24 小时测量初始氟化物释放量，并在每周结束时每隔 24 小时测量初始氟化物释放量，持续 5 周。 6周后，将样品分组，每组用以下市售氟化物凝胶之一处理6分钟：酸化磷酸氟化物（AP Fl、中性氟化钠（NaF）和氟化亚锡（SnF2））。将对照样品置于去离子水中。暴露后，在7天期间以24小时的间隔进行氟化物测量，并在2周结束时以24小时的间隔进行氟化物测量。重复暴露于氟化物，并在 3 周内再次记录测量结果。所有材料的初始氟化物释放量在前 24 小时内最高，并在暴露于 APF 后急剧下降，暴露于 NaF 也导致所有材料的氟化物释放量增加，尽管暴露于 SnF2 后没有导致任何材料显着的氟化物释放。这项研究的结果表明，某些氟化物凝胶可以补充某些玻璃离聚物酸中的氟化物，从而延长其防龋潜力。
Objectives. The short-term fluoride release/uptake of four glass ionomer restoratives was measured and compared to the fluoride release after exposure to three commercial fluoride gels.Methods. Materials tested were: 1) Ketac-Fil (ESPE GmbH); 2) Ketac-Silver (ESPE GmbH); 3) Photac-Fil (ESPE GmbH); and 4) Fuji II LC (GC Corp.). Twenty discs of each material were fabricated and stored in deionized water at 37 degrees C. Initial fluoride release was measured at 24 h intervals for 7 d, and 24 h intervals at the end of each week for 5 wk. After 6 wk, samples were divided into groups and each group was treated for 6 min with one of the following commercial fluoride gels: acidulated phosphate fluoride (AP Fl, neutral sodium fluoride (NaF), and stannous fluoride (SnF2). Control specimens were placed in deionized water. After exposure, fluoride measurements were carried out at 24 h intervals for 7 d, and 24 h intervals at the end of 2 wk. Fluoride exposure was repeated, and measurements were again recorded over 3 wk.Results. Initial fluoride release by all materials was highest during the first 24 h and decreased sharply over the first week. After exposure to APF, fluoride release increased significantly for all materials. Exposure to NaF also resulted in increased fluoride release for all materials although it was not as high as the increase recorded after exposure to APF. Exposure to SnF2 did not result in significant fluoride release by any material.Significance. The results of this study suggest that certain fluoride gels may replenish fluoride within some glass ionomers acid thus prolong their cariostatic potential.