打印片材料的双轴柔性强度 打印片材料的双轴柔性强度
Johann Wulff1, Angelika Rauch1, Michael Benno Schmidt1
1Department of Prosthetic Dentistry, UKR University Hospital Regensburg, 93042 Regensburg, Germany.
Materials (Basel, Switzerland)
|March 13, 2024
概括
3D打印的口腔支柱
科学领域:
- 生物材料科学 生物材料科学
- 牙科材料 牙科材料
- 添加剂制造 添加剂制造 添加剂制造
背景情况:
- 3D打印的口腔是一种治疗功能障碍的治疗选择.
- 材料特性对于 splint 的有效性至关重要,受到清洁,后聚合和打印方向的影响.
- 了解这些因素是优化 splint 性能的关键.
研究的目的:
- 为了评估3D打印 splint 材料的双轴屈曲强度 (BFS).
- 评估清洗方法,后聚合技术的影响,并建立对BFS的指导.
- 为了确定最佳的制造参数,以提高 splint 的强度.
主要方法:
- 720个片材料盘被3D打印成各种方向.
- 样品经过自动或手动清洁和用LED或Xenon光进行后聚合.
- 在24小时和60天的水储存后,使用活塞对三球试验测量了双轴屈曲强度.
主要成果:
- 平均BFS在24小时后为79-157MPa,在60天后为72-127MPa.
- 在材料或清洁过程之间没有发现BFS的显著差异.
- 通过LED的后聚合和90度的构造方向,可以获得更高的BFS.
结论:
- 在90°和LED后聚合构建方向显著提高3D打印口腔的双轴屈曲强度.
- 这些制造参数应实施以最大限度地提高 splint 材料的强度.
- 优化打印和固化对于持久有效的口腔是必不可少的.
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