渐进的牙磨损对抗基于树脂的修复复合材料
W Bettker1, A D Nogueira1, E R X Marcolin1
1University of Passo Fundo, Passo Fundo, RS, 99052-900, Brazil.
概括
大量填充树脂复合材料 (BF) 与传统的树脂复合材料 (RC) 和树脂纳米陶 (RN) 相比,牙磨损较少. BF还表现出优越的耐磨性,这表明牙科修复的临床性能良好.
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:
- 基于树脂的复合材料广泛用于牙科修复.
- 材料特性可以影响牙磨损和临床结果.
- 了解磨损行为对于选择适当的修复材料至关重要.
研究的目的:
- 为了比较大量填充修复剂 (BF) 与常规树脂复合材料 (RC) 和树脂纳米陶 (RN) 的牙磨损行为.
- 评估这些修复材料的耐磨性和微硬度.
- 为了评估不同材料在模拟时对人类牙结构的影响.
主要方法:
- 用模拟器对BF,RC和RN标本进行了 Occlusal 磨损测试.
- 人类前肢尖端作为对抗测试材料的对手.
- 使用微型CT和激光扫描量化了磨损量,使用SEM检查了磨损模式.
- 诺普微硬度测试评估了在乙醇浸泡后材料的软化.
主要成果:
- 与树脂纳米陶 (RN) 和常规树脂复合材料 (RC) 相比,散装树脂复合材料 (BF) 的牙磨损显著减少.
- BF表现出优越的耐磨性,体积损耗低于RC和RN.
- 材料磨损和体积损耗随着测试周期的数量增加 (高达50万个周期).
结论:
- 大量填充树脂复合材料诱导较少的牙体积损失,并且比传统的树脂复合材料和树脂纳米陶具有更高的耐磨性.
- 所有测试的材料都显示出轻度的牙磨损模式和损伤进展.
- 大量填充树脂复合材料提供了一种高效的修复技术,具有较低的磨损易感性和减少牙磨损潜力.
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