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现代光固化复合材料作为化剂:预热对转化和薄膜厚度的影响

Maria Dimitriadi¹, Aikaterini Petropoulou², Ioannis Papathanasiou²

¹Department of Biomaterials, School of Dentistry, National and Kapodistrian University of Athens, 115 27 Athens, Greece.

Materials (Basel, Switzerland)

|August 28, 2025

概括

现代光固化复合材料的预热可改善薄膜厚度,但可能导致低于最佳的聚合. 建议在使用这些材料作为低透光线上的光剂时谨慎使用.

科学领域:

牙科材料科学
恢复性牙科
聚合物化学

背景情况:

在牙科修复中广泛使用光固化树脂复合材料.
预热复合材料可以提高处理性能和降低粘度.
预热对现代复合材料作为在线涂料的光剂的性能的影响需要彻底调查.

研究的目的:

评估四种现代光固化树脂复合材料的转化程度 (DC%).
在预热之前和之后评估这些复合材料的薄膜厚度.
为了确定薄膜厚度对转换度 (DC%) 的影响,当用于复合面板.

主要方法:

四种树脂复合材料 (Filtek Universal,Clearfil Majesty ES 2 Universal,Tetric EvoCeram,Viscalor) 进行了测试.
使用ATR-FTIR光谱测量转化度 (DC%) 在模拟的在线涂层下进行光固化后.
使用修改后的ISO 4049标准测量薄膜厚度;根据材料的预热方案有所不同.

主要成果:

预热显著减少了所有测试复合材料的薄膜厚度.
在材料和预热前/预热后的转化程度 (DC%) 中观察到显著差异.
在较厚的层中,增加光线暴露提高了直流率,但对照组显示出更高的值.

结论:

预热现代高填充复合材料可以降低薄膜厚度,但可能会损害聚合.
由于潜在的不理想结果,使用这些复合材料作为低透光线上的光剂需要仔细考虑.
需要进一步的研究来优化预热方案以提高临床应用的性能.

关键词:

FTIR光谱学转换的程度薄膜的厚度化剂预热复合材料

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