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用自动聚焦激光切割器在聚乙表面上生成的槽提高牙水泥结合强度

Tzu-Yu Peng^1,2, Tien-Li Ma², I-Ta Lee¹

¹School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan.

|September 28, 2023

概括

自动对焦激光切割机在聚乙基 (PEEK) 上创建独特的槽结构,以改善其与牙树脂水泥的结合. 这种激光处理增强了PEEK表面的特性,而不会对热循环后的细胞活力或键强度产生负面影响.

科学领域:

生物材料工程生物材料工程
牙科材料科学牙科材料科学
表面科学是一门学科.

背景情况:

聚乙基 (PEEK) 是一个有价值的牙科材料,因为它的美学和机械性能.
目前用于PEEK粘合的表面处理具有局限性,阻碍了最佳的临床应用.
激光技术为生物材料提供了精确的表面修饰潜力.

研究的目的:

研究自动对焦激光切割在PEEK上创建表面槽结构的有效性.
评估这些激光诱导结构如何提高PEEK与牙树脂水泥的粘合能力.
评估激光处理对PEEK表面特征,细胞活力和粘合强度的影响.

主要方法:

使用牙科CAD/CAM系统制造PEEK样品.
在PEEK表面上创建了三种不同的激光槽图案 (圆形,直线,网格).
评估了表面地形,疏水性,细胞活力和键强度;空气磨损作为对照.

主要成果:

激光处理的结果是均的PEEK表面纹理,大约有39.4微米深的槽.
经过处理的PEEK表面表现出疏水性 (接触角度>90°) 和增加粗性 (7.312.4μm).
细胞活力仍然与未经处理的PEEK相比,并且结合强度在热循环后没有显著差异,除了线图外.

结论:

自动对焦激光切割通过创建统一的纹理和微沟,有效地修改PEEK表面.
这种基于激光的表面处理对改善PEEK与牙树脂水泥的粘合有很大的希望.
该方法显示了提高PEEK临床性能的潜力,即使考虑到热循环挑战.

关键词:

这是一个CAD-CAM系统.自动聚焦激光器自动聚焦激光器债券的强度债券的强度债券的强度聚乙基是一种聚乙基.树脂水泥是一种树脂水泥.表面处理表面处理

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