Challenge to long-term durability of the material for dentin hypersensitivity with a remineralization ability

本研究的目的是评价牙本质过敏症材料再矿化的长期耐久性，以期达到防龋的效果。本研究发现含氟牙漆材料中有大量的氟化物释放。材料在牙本质表面涂抹了一段时间。然后将它们从牙本质中取出，然后将样品放入口腔环境中4周。与现有材料相比，含氟牙漆材料脱矿更少，进入牙本质的氟浓度更高。氟浓度越高，使用周期越长。用KOH(氢氧化钾)对牙样进行处理，发现有氟结合或无结合的牙齿。

The purpose of this research was to evaluate long-term durability of remineralization by materials for dentin hypersensitivity, which was expected the caries prevention effect. Large amount of fluoride release from fluoride-containing tooth paint material was shown in this study. Materials were applied to dentin surface for some periods. After then they were removed from dentin, and then samples were placed into oral environment for 4 weeks. Less demineralization and more fluorine concentration into dentin from fluoride-containing tooth paint materials were indicated than that of current materials. The higher fluorine concentration was shown longer application period. The fluorine bound or no-bound tooth was found by KOH (potassium hydroxide) treatment to tooth sample.