The effects of single application of pastes containing ion-releasing particles on enamel demineralization
The effects of single application of pastes containing ion-releasing particles on enamel demineralization
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DOI：
10.4012/dmj.2016-307
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发表时间：
2017-08-01
影响因子：
2.5
通讯作者：
Mizoguchi, Itaru
中科院分区：
文献类型：
--
作者：
Iijima, Masahiro;Kawaguchi, Kyotaro;Mizoguchi, Itaru
我们研究了单一应用糊剂含有表面反应型预反应玻璃离子（S-PRG）填料对釉质脱矿。使用含有S-PRG填料（0、5和30%）的糊剂抛光人牙釉质块，并将其浸入脱矿溶液中5天，每天更换溶液。在浸泡期间进行pH测量和纳米压痕测试，并使用扫描电子显微镜和原子力显微镜检查釉质表面。使用非氟化物糊剂和含羟基磷灰石糊剂进行比较。用含S-PRG填料的浆料抛光的试样具有酸中和性能，随着S-PRG填料含量的增加，其变得更强。浸泡在软化溶液中后，用含S-PRG填料的糊剂抛光的试样比用其它糊剂抛光的试样表现出显著更大的硬度和弹性模量值，并且比其它试样表现出更光滑的表面。含有S-PRG填料的糊剂抑制釉质的脱矿。
We investigated single application of pastes containing a surface reaction-type pre-reacted glass-ionomer (S-PRG) filler on enamel demineralization. Human enamel blocks were polished using pastes containing S-PRG filler (0, 5, and 30%) and immersed in demineralizing solution for 5 days with daily change of solutions. The pH measurement and nanoindentation testing was carried out during the immersion period, and the enamel surfaces were examined using scanning electron microscopy and atomic force microscopy. A non-fluoride paste and a hydroxyapatite-containing paste were used for comparison. The specimens polished with the S-PRG filler-containing paste exhibited acid-neutralizing properties, which became stronger with an increasing S-PRG filler content. Following immersion in the demineralizing solution, specimens polished with the S-PRG filler-containing paste exhibited significantly greater hardness and elastic modulus values than those polished with the other pastes and exhibited a smoother surface than did the other specimens. Pastes containing S-PRG filler inhibits the demineralization of enamel.