固化后条件对3D打印假牙基聚合物表面特征,物理机械性能和细胞毒性的影响
Ke Luo1, Qian Liu1, Abdulaziz Alhotan2
1Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, South Jiangnan Road No. 366, Guangzhou 510280, China.
概括
固化后的条件会影响3D打印的假牙基材. 水浸水优化了柔性模量,而所有条件都改善了水吸附,溶解性和降低了细胞毒性.
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
- 牙科材料 牙科材料
背景情况:
- 增材制造 (AM) 提供了对假牙基的定制.
- 优化后聚合 (后固化) 对于AM材料性能至关重要.
- 了解硬化后对材料性能的影响对于临床应用至关重要.
研究的目的:
- 为了研究不同的后固化条件如何影响增材制造假牙基材的表面特征,曲性质,水吸附/溶解性和细胞毒性.
- 确定最佳的后固化方法,以提高3D打印假牙基材的性能.
主要方法:
- 数字光处理 (DLP) 用于制造假牙基标本.
- 标本经过了三个固化后的条件:水浸泡 (WAT),糖浸泡 (GLY) 和空气暴露 (AIR).
- 评估了表面地形,粗度,屈曲强度/模块,水吸附/溶解度和细胞毒性.
主要成果:
- 在固化后的组之间没有观察到表面地形或粗度 (Sa) 的显著差异.
- 屈曲强度没有受到固化后条件的显著影响.
- 水中浸泡的组与空气暴露相比,表现出明显更高的曲模量.
- 所有经过测试的固化后条件都符合ISO水吸附和溶解度标准,并有效降低了细胞毒性.
结论:
- 固化后的条件,特别是水浸,可以增强3D打印假牙基材的模量.
- 后固化通常优化了水吸附,溶解性和细胞相容性,无论具体情况如何.
- 建议用水浸泡后固化,以提高这些材料的机械性能.
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