在实验室中,常规和可流动复合材料的耐磨性,在热力学加载后含有各种填充剂类型的复合材料
Sabri Turk1, Ezgi Erden Kayalidere2, Esra Uzer Celik3
1Private Clinic, Izmir, Turkey.
概括
传统的复合材料表现出比流动复合材料更好的耐磨性,而纳米填充材料表现出最高的磨损. 所有经过测试的复合材料在模拟时都比人体面膜损伤更大.
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
- 部落学 (tribology) 是一个学科.
背景情况:
- 复合树脂在恢复性牙科中广泛使用.
- 了解耐磨性对于长期临床成功至关重要.
- 浮性复合材料提供了处理优势,但其磨损性能需要评估.
研究的目的:
- 为了比较传统复合材料和可流动复合材料的耐磨性.
- 为了研究不同类型的填充剂 (纳米混合,纳米填充,亚微米填充) 对磨损的影响.
- 通过热力机械模拟来评估磨损.
主要方法:
- 来自三家制造商的六种复合材料类型 (3 种常规, 3 种可流动) 进行了测试.
- 提取的人类前作为对照.
- 一个模拟器将样品 subjected to 240,000 周期 (模拟 1 年).
- 使用激光扫描测量了磨损体积损失和深度.
主要成果:
- 乳的磨损明显低于所有复合材料组.
- 纳米填充复合材料显示显著更高的磨损体积损失和深度.
- 传统复合材料的磨损明显低于可流动复合材料.
- 在纳米混合和亚微米填充复合材料之间没有发现显著的磨损差异.
结论:
- 复合填充剂类型和粘度在体外显著影响耐磨性.
- 与传统复合材料相比,浮性复合材料具有较低的耐磨性.
- 所有测试的复合材料的磨损易感性比人体面膜高2-3倍.
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