Donly K J, Nelson J J
Department of Pediatric Dentistry, College of Dentistry, University of Iowa, Iowa City, USA.
ASDC J Dent Child. 1997 Jul-Aug;64(4):249-50.
The purpose of this study was to examine the effect that brushing with a fluoridated dentifrice (Crest--Procter and Gamble) has on the fluoride release of restorative materials. Thirty standardized discs were fabricated; 10 were P-50 (3M) nonfluoridated composite resin (control), ten were Heliomolar Radiopaque (Ivoclar/Vivadent) fluoride releasing composite resin, and ten were Ketac Fil (ESPE) glass ionomer cement. Specimens were placed into separate containers of 10 mL deionized water. Half the specimens from each group were brushed with fluoridated dentifrice for two minutes twice per day and rinsed. The fluoride level of each specimen was evaluated for thirty days, using a fluoride specific ion analyzer. An analysis of variance (ANOVA) and Duncan's test (p < 0.05) indicated significant differences in fluoride release. The brushed glass ionomer was significantly higher than all other groups and the glass ionomer not brushed was significantly higher than all composite groups. Glass Ionomer Cement-brushed > Glass Ionomer Cement > Fluoridated Composite Resin-brushed = Fluoridated Composite Resin = Composite Resin-brushed = Composite Resin. Brushed glass ionomer appears to release the highest fluoride level, acting as a fluoride reservoir from the dentifrice for subsequent fluoride release.
本研究的目的是检测使用含氟牙膏（佳洁士——宝洁公司）刷牙对修复材料氟释放的影响。制作了30个标准圆盘；10个是P - 50（3M）非氟化复合树脂（对照），10个是贺利氏含氟显影复合树脂（义获嘉伟瓦登特公司），10个是卡塔Fil玻璃离子水门汀（爱士康公司）。将标本放入单独的10 mL去离子水中的容器中。每组一半的标本每天用含氟牙膏刷牙两次，每次两分钟，然后冲洗。使用氟特异性离子分析仪对每个标本的氟含量进行了30天的评估。方差分析（ANOVA）和邓肯检验（p < 0.05）表明氟释放存在显著差异。刷牙的玻璃离子水门汀显著高于所有其他组，未刷牙的玻璃离子水门汀显著高于所有复合树脂组。刷牙的玻璃离子水门汀>玻璃离子水门汀>刷牙的含氟复合树脂=含氟复合树脂=刷牙的复合树脂=复合树脂。刷牙的玻璃离子水门汀似乎释放出最高的氟含量，作为来自牙膏的氟储存库用于随后的氟释放。
