Donly K J
Department of Pediatric Dentistry, College of Dentistry, University of Iowa, Iowa City.
Am J Dent. 1994 Oct;7(5):275-8.
Fluoride-releasing dental restorative materials may provide an additional benefit in preventive dentistry. Although not currently available in the United States, a fluoride-releasing amalgam has demonstrated recurrent caries inhibition at enamel and dentin restoration margins. Likewise, both chemical-cured and light-cured glass ionomer cements have demonstrated caries inhibition at enamel and dentin restoration margins. Fluoride-releasing resin composites have also consistently demonstrated recurrent caries inhibition at enamel margins, yet there are conflicting results whether caries inhibition occurs at dentin margins. Preliminary studies indicate that glass ionomer cement and fluoride-releasing resin composite have synergistic effects with fluoride rinses and fluoridated dentifrices, in the remineralization of incipient enamel caries. The materials may act as a fluoride delivery system. Upon exposure to additional external fluoride, the material surface undergoes an increase in fluoride. This fluoride is subsequently released and has demonstrated demineralization inhibition and even remineralization at adjacent tooth structure. Clinical research to evaluate these fluoride-releasing restorative materials may provide further information for clinical recommendations.
释氟牙科修复材料可能在预防牙科方面带来额外益处。尽管目前在美国尚无此类产品，但一种释氟汞合金已显示出对牙釉质和牙本质修复边缘处复发性龋齿的抑制作用。同样，化学固化和光固化玻璃离子水门汀均已证明对牙釉质和牙本质修复边缘处的龋齿有抑制作用。释氟树脂复合材料也始终显示出对牙釉质边缘处复发性龋齿的抑制作用，然而对于在牙本质边缘处是否发生龋齿抑制作用，结果存在争议。初步研究表明，玻璃离子水门汀和释氟树脂复合材料在早期牙釉质龋再矿化方面与含氟漱口水和含氟牙膏具有协同作用。这些材料可作为氟输送系统。在接触额外的外部氟化物时，材料表面的氟含量会增加。随后释放出的这种氟化物已显示出对相邻牙齿结构脱矿的抑制作用，甚至还有再矿化作用。评估这些释氟修复材料的临床研究可能会为临床建议提供更多信息。
