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氧气度对3D打印牙后固化的影响

Da Sol Han, Reuben Kim, Hong-Keun Hyun

The International journal of prosthodontics

|March 18, 2024

概括

在3D打印牙科材料的后固化过程中减少氧气可以提高曲强度和光泽. 这种增强使得3D打印的假肢更适合于牙科应用.

科学领域:

材料科学材料科学材料科学
生物材料工程生物材料工程
牙科技术牙科技术

背景情况:

3D打印越来越多地用于牙科假体.
固化后对于材料性能至关重要,但可能会受到氧气抑制的影响.
优化后硬化条件对于提高材料性能至关重要.

研究的目的:

为了研究3D打印牙科材料在后固化过程中氧气度降低的影响.
为了确定注射是否可以改善牙科应用的材料特性.

主要方法:

3D打印的树脂样本在不同氧气水平 (20%,10%,5%) 和时间下进行后固化.
评估的表面粗度,光泽度,屈曲强度,弹性模量,吸水能力和可溶性.
使用的光度计,里埃变换红外光谱 (FT-IR),通用测试机,以及ISO标准.

主要成果:

与对照组相比,降低氧气度显著增加了屈曲强度,转换度和光泽.
在一些氧含量较低的群体中,水溶性和水吸收率下降.
弹性模块在各组之间没有统计学上显著的差异.

结论:

通过注射气在后固化过程中降低氧气度,可以改善3D打印牙科材料.
增强的屈曲强度对于牙假体应用特别有益.

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