在复合材料和上钻石研磨机的切割效率
Martin Rosentritt1, Thomas Strasser1, Maerit-Martha Mueller1
1Department of Prosthetic Dentistry, UKR University Hospital Regensburg, 93042 Regensburg, Germany.
Materials (Basel, Switzerland)
|June 19, 2024
概括
这项研究比较了钻石研磨机在和树脂复合材料上的效率. 研磨石需要五倍的时间来去除相似的材料,这表明磨损和耐用性的显著差异.
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:
- 钻石研磨机对于牙科修复手术至关重要.
- 了解它们在不同材料 (如和树脂复合材料) 上的切割效率对于临床成功至关重要.
- 研磨机性能的变化可能会影响程序时间和材料完整性.
研究的目的:
- 为了比较体外切割效率和钻石研磨机在和树脂基复合材料上的磨损特性.
- 评估重复研磨对研磨机性能和材料清除的影响.
- 为了确定研磨和树脂复合材料之间的时间效率差异.
主要方法:
- 在体外比较钻石研磨机在和树脂基复合材料上的切割效率.
- 应用一个恒定的负载 (160g) 与标准化的切割参数,每个材料.
- 通过在研磨前后测量材料重量损失来评估研磨机效率.
- 扫描电子显微镜 (SEM) 分析研磨机表面和材料表面.
主要成果:
- 对于树脂复合材料 (p=0.009在基线) 和 (p<0.001在基线) 在不同研磨机之间观察到重量去除的显著差异.
- 与基线值相比,重量去除在第3,4,6和第7步骤的树脂复合材料 (p≤0.046) 和第4步骤的 (p=0.006) 中显著下降.
- 研磨石需要比树脂复合材料长五倍的时间来实现可比的材料去除,突出了磨损和耐用性的差异.
结论:
- 钻石研磨机的效率和耐用性在和树脂基复合材料之间有很大差异.
- 磨损特性和切割性能需要不同的临床方法,每个材料类型.
- 优化牙科手术需要考虑切削工具的特定材料性能.
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