Vibrational Analysis by Raman Spectroscopy of the Interface Between Dental Adhesive Resin and Dentin
Vibrational Analysis by Raman Spectroscopy of the Interface Between Dental Adhesive Resin and Dentin
复制标题
牙科粘合树脂与牙本质界面的拉曼光谱振动分析
DOI：
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发表时间：
1991
期刊：
影响因子：
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通讯作者：
S. Wakumoto
中科院分区：
文献类型：
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作者：
M. Suzuki;H. Kato;S. Wakumoto
应用拉曼微探针技术对4-Meta/MMA-TBB树脂与牙本质粘接界面的分子组成进行分析。拉曼光谱显示，单体溶液中的4-Meta分子大部分水解成4-MET分子，然后与MMA分子共聚形成树脂和树脂增强牙本质层。根据拉曼微探针的谱线分析，估计树脂分子从界面进入牙本质6 μm。拉曼强度研究表明，树脂增强牙本质中的4-MET分子单元的浓度是原始单体溶液中浓度的四倍以上。这表明4-MET单体具有良好的原位渗透牙本质基质的能力。
The Raman microprobe technique was applied for analysis of the molecular components at the adhesive interface between 4-META/MMA-TBB resin and dentin. The Raman spectra showed that the 4-META molecules in monomer solution were mostly hydrolyzed into 4-MET molecules, which were then co-polymerized with MMA molecules to form resin and resin-reinforced dentin layers. On the basis of line analysis by the Raman microprobe, resin molecules were estimated to penetrate 6 μm into the dentin from the interface. Raman intensity studies indicated that the concentration of 4-MET molecular units in the resin-reinforced dentin was more than four times the concentration in the original monomer solution. This demonstrated the excellent infiltration ability of 4-MET monomer into dentin substrate in situ.