Efficacy of varying the NMEP concentrations in the NMGly-NMEP self-etching primer on the resin-tooth bonding.
Efficacy of varying the NMEP concentrations in the NMGly-NMEP self-etching primer on the resin-tooth bonding.
复制标题
改变 NMGly-NMEP 自蚀刻底漆中 NMEP 浓度对树脂-牙齿粘合的功效。
DOI：
10.1016/j.biomaterials.2004.07.039
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发表时间：
2005
期刊：
影响因子：
14
通讯作者：
K. Nemoto
中科院分区：
文献类型：
--
作者：
N. Nishiyama;Kou Fujita;T. Ikemi;Takahide Maeda;Kazuomi Suzuki;K. Nemoto
众所周知，自酸蚀底漆的应用增强了树脂-牙齿界面的粘结。在本研究中，我们设计了一种由N-甲基丙烯酰甘氨酸(NMGly)和N-甲基丙烯酰基-2-氨基乙基膦酸(NMEP)组成的自腐蚀底漆。考察了NMGly中的羧酸和NMEP中的磷酸对羟基磷灰石或牙本质的脱矿效果及其对树脂与牙本质粘结强度的影响。将NMGly-NMEP溶液应用于牙釉质，当在NMGly水溶液中添加额外数量的NMEP时，粘结强度增加。这种增加是由于NMEP中的磷酸使牙釉质脱矿。相反，在NMGly溶液中添加NMEP会导致与牙本质的粘结强度降低。在NMGly-NMEP溶液中，NMEP的最佳浓度可使牙釉质和牙本质的粘结强度达到20 Mpa以上。
It is well understood that the application of a self-etching primer enhances the bonding at the resin-teeth interface. In this study, we designed a self-etching primer consisting of N-methacryloyl glycine (NMGly) and N-methacryloyl-2-aminoethyl phosphonic acid (NMEP). The demineralization effects on the hydroxyapatite or dentin by the carboxylic acid in the NMGly and by the phosphonic acid in the NMEP and their effects on the bond strength of the resin to the tooth were examined. The application of the NMGly–NMEP solution to the enamel resulted in an increase in the bond strength when additional amounts of NMEP were added to the NMGly aqueous solution. This increase was due to the phosphonic acid in the NMEP demineralizing the enamel. Conversely, the addition of the NMEP to the NMGly solution resulted in a decrease in the bond strength to the dentin. The optimal concentration of the NMEP in the NMGly–NMEP solution resulted in bond strengths of over 20MPa for both the enamel and dentin.