传统和自粘可流动树脂复合材料的12个月柔性机械性能
John Brewster1, Howard W Roberts2
155th DS/SGDR.
Dental materials journal
|June 11, 2023
概括
这项研究比较了传统和自粘性流动性树脂基复合材料 (FRBC) 的12个月的柔性特性. 与自粘类型相比,传统的FRBC材料通常表现出更高的屈曲强度和模量.
科学领域:
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
- 牙科材料 牙科材料
背景情况:
- 基于可流动树脂的复合材料 (FRBC) 在修复牙科中被广泛使用.
- 了解它们的长期机械特性对于临床成功至关重要.
- 自粘性FRBC材料提供了方便,但其耐用性需要研究.
研究的目的:
- 为了评估23种FRBC材料的12个月的柔性机械性能.
- 为了将传统的FRBC与自粘FRBC和复合材料进行比较.
- 在模拟生理条件下评估材料降解.
主要方法:
- 测试了23种FRBC材料,包括5种自粘类型.
- 标本根据ISO 4049:2019指南进行准备和测试.
- 测试发生在酸盐缓冲盐水中储存后的24小时,1周,1个月和3,6,9,12个月.
主要成果:
- 传统的FRBC材料在12个月内通常表现出比自粘FRBC和复合材料更高的屈曲强度和模量.
- 一些材料,包括三种自粘类型和一种复合物,在24小时内低于ISO 4049:2019的柔性强度标准.
- 在各种测试间隔观察到性能降解和偏差,表明材料依赖的反应.
结论:
- 与自粘性FRBC和复合材料相比,传统的FRBC材料通常具有优越的长期柔性机械性能.
- 材料选择至关重要,因为一些自粘和复合材料可能会随着时间的推移而无法满足所需的机械标准.
- 需要进一步研究自粘牙复合材料的长期稳定性和性能.
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