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在3D打印复合材料皇冠中增强聚合和颜色稳定性的后固化策略

Ana Carolina do Rosário Costa Lima¹, Ido Luiz de Azevedo Feiten¹, Mario Pereira Couto Neto¹

¹Laboratory of Applied Biotechnology, School of Dentistry, Federal Fluminense University, Niterói, RJ, Brazil.

Journal of the mechanical behavior of biomedical materials

|October 29, 2025

概括

经过固化后的3D打印牙可以显著提高表面硬度和颜色稳定性. 虽然385nm光线提供了最大的硬度,但它可能会导致初始黄色,影响临床可接受性.

科学领域:

牙科材料科学牙科材料科学
增材制造增材制造增材制造
生物材料工程生物材料工程

背景情况:

3D打印的树脂复合材料越来越多地用于最终的牙科修复.
优化后固化协议对于材料性能至关重要,但仍未得到充分研究.

研究的目的:

评估不同后固化方法对3D打印树脂复合材料的表面硬度和光学稳定性的影响.
专门评估永久皇冠应用的颜色变化和半透明度.

主要方法:

制造圆盘形树脂复合样品. 树脂复合样品的制造.
使用405nm和385nm光源的各种后固化协议的应用.
在模拟凝固前后测量表面硬度,颜色变化 (ΔE00) 和半透明度 (TP00).

主要成果:

表面硬度随着延长固化时间和特定波长 (385nm产生最高值) 显著增加.
在所有测试组中,半透明度保持一致.
未经固化的样本显示出最显著的颜色变化;固化后,特别是使用385nm光线,减少了颜色变化.

结论:

后固化对于提高3D打印牙的表面硬度和长期颜色稳定性至关重要.
385nm光源最大限度地提高了硬度,但可能会导致不良的初始黄色.
优化后固化方案对于3D打印修复的临床成功至关重要.

关键词:

复合材料复合材料是一种复合材料.皇冠皇冠皇冠皇冠牙科材料牙科材料永久的永久的永久的三维打印是三维打印的一种方式.

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