大量填充复合材料的推出键强度,用于作为内 anchorage材料
The journal of adhesive dentistry
|April 30, 2025
概括
这项研究评估了内 anchorage (ICA) 复合材料,发现尽管粘度不同,但都足以粘合. 然而,应用中的空白影响了债券强度,突出了材料粘度作为关键因素.
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
- 恢复性牙科 恢复性牙科
背景情况:
- 内 anchorage (ICA) 对于后部和核心修复至关重要.
- 了解各种ICA材料的结合强度对于临床成功至关重要.
- 材料粘度可以影响ICA材料的应用和粘合效率.
研究的目的:
- 为了评估不同粘度的管内 anchorage (ICA) 复合材料的推出键强度.
- 为了比较Ormocer (AFx),预热复合材料 (VB),核心积累 (RDC) 和可流动 (SDR) 材料的性能.
- 分析材料粘度对空隙形成和结合强度的影响.
主要方法:
- 根据ICA材料,准备了48个人类上切口,并根据ICA材料分为四组.
- 根通道被扩大和调节,然后用ICA材料和纳米混合复合材料填充.
- 在热力机械加载 (TML) 后,分析了推出键强度,断裂模式和空隙 (使用μ-CT).
主要成果:
- ICA材料显著影响了推出键强度 (P = 0.001).
- 预热复合材料 (VB) 与RDC和AFx相比显示较低的债券强度,但不是SDR.
- 主要发生粘合器故障,μ-CT显示了物质依赖的空隙定位.
结论:
- 所有经过测试的ICA材料在热力学负荷后都显示出足够的粘合.
- 材料粘度显著影响空隙形成,并影响整体结合强度.
- 需要谨慎的应用技术来最大限度地减少空隙并优化ICA性能.
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