直接树脂复合材料中封闭孔隙的定量分析:微型CT研究对材料类型的影响
Enas Mangoush1, Lippo Lassila1, Pekka K Vallittu1,2
1Department of Biomaterials Science and Turku Clinical Biomaterial Center -TCBC, Institute of Dentistry, University of Turku, Turku, Finland.
International journal of dentistry
|October 1, 2025
概括
这项研究发现,树脂复合材料类型显著影响性. 可流动复合材料的孔径比可包装复合材料的孔径更低,孔径更大与孔径百分比更高有关.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程 生物材料工程
- 纳米技术纳米技术
背景情况:
- 树脂复合材料中的多孔性会影响机械性能和寿命.
- 微型计算机断层扫描 (micro-CT) 是用于内部结构的非破坏性分析的宝贵工具.
研究的目的:
- 为了比较各种树脂复合材料类型的平均孔径和闭孔度.
- 为了研究毛孔大小和毛孔率之间的关系.
主要方法:
- 准备了15种不同的树脂复合材料的90个样本.
- 微计算机断层扫描 (micro-CT) 用于分析平均毛孔大小和闭孔度.
- 统计分析包括沙皮罗-威尔克,双向ANOVA,图基的HSD和皮尔森相关性.
主要成果:
- 在材料类型之间发现了封闭孔隙性的显著差异.
- 菲尔特克通用修复剂的毛孔度最低 (0.049%),而Fibrafill DENTIN的毛孔度最高 (4.78%).
- 流动性复合材料 (0.31%的多孔性) 的多孔性低于包装性复合材料 (1.25%).
结论:
- 材料类型显著影响树脂复合材料中的多孔性形成.
- 较大的平均毛孔大小与较高的闭孔率相关.
- 了解多孔性对于选择合适的牙修复材料至关重要.
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