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用于树脂注塑成型技术的透明PVS材料的压缩模量,半透明度和辐射透射率
Nadia Machado1, Mateus G Rocha2, Dayane Oliveira2
1Division of Biomaterials, UAB School of Dentistry, Birmingham, Alabama, USA.
概括
透明的聚乙烯西洛 (PVS) 材料在压缩模量上有所不同,Exaclear显示出优越的透光性和光传递性. 增加的PVS厚度降低了透光度和光传输,需要调整固化时间以实现最佳的复合材料聚合.
科学领域:
- 牙科材料科学 牙科材料科学
- 聚合物化学 聚合物化学
- 生物材料工程 生物材料工程
背景情况:
- 透明的聚乙烯西洛 (PVS) 材料用于牙科注射成型技术.
- 评估它们的光学和机械性能对于临床应用至关重要.
研究的目的:
- 评估四种透明PVS材料的压缩模量,半透明度和光固化辐射透射率.
- 为了确定材料厚度对这些特性的影响.
- 为了研究颜色参数和辐射透射率之间的相关性.
主要方法:
- 通过使用通用测试机来测试四种透明PVS材料的压缩模量.
- 在不同厚度 (2-10毫米) 的样本上测量了半透明度和辐射透射率.
- 记录了颜色参数 (L*,a*,b*),并计算了半透明度参数. 皮尔森的相关性被用来分析关系.
主要成果:
- 压缩模量在材料之间有显著差异;Affinity和Memosil 2表现出最高的值.
- 半透明度和辐射透射率随着材料厚度的增加而下降.
- 埃克萨克莱尔展示了所有厚度的最高半透明度和辐射传输.
- 在半透明度和光辐射传导度之间发现了强烈的正相关性 (r=0.97).
结论:
- 材料类型显著影响压缩模量,较高的值表明更大的稳定性.
- Exaclear提供卓越的半透明度和光传输,即使在更大的厚度.
- 半透明度和光传输之间的强相关性允许根据材料厚度有效调整固化时间.
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