使用扫描电子显微镜和光学形仪在滑动和表面拓过程中由不同支架类型产生的相关摩擦力
Anisa H AlBadr1, Nabeel F Talic2
1Department of Pediatric Dentistry and Orthodontics, College of Dentistry, King Saud University, Saudi Arabia, Phone: +966 500503228, e-mail: anisa.albadr@gmail.com, Orcid: https://orcid.org/0000-0002-5342-1365.
The journal of contemporary dental practice
|March 21, 2024
概括
陶支架中的摩擦力与表面粗性没有直接相关. 一些陶支架尽管表面光滑,但摩擦力很高,而另一些则在较粗的表面摩擦力较低.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 生物材料科学 生物材料科学
- 表面工程是什么?表面工程是什么?
背景情况:
- 摩擦力 (FF) 在正牙滑动力学中至关重要.
- 了解支架表面地形和FF之间的关系对于处理计划至关重要.
研究的目的:
- 研究不同陶支架的表面地形和它们产生的摩擦力之间的相关性.
- 为了比较单晶,多晶和混合陶支架与不钢控制器的摩擦行为.
主要方法:
- 测试了四种类型的陶支架 (两个单晶,一个多晶,一个混合美学) 和一个不钢控制支架.
- 静态摩擦 (SF) 和运动摩擦 (KF) 在干燥条件下使用Instron通用机器进行测量.
- 在滑动前后使用扫描电子显微镜 (SEM) 和 profilometer 分析了表面地形.
主要成果:
- 在支架类型中,摩擦力各不相同,Inspire ICETM和CLEARTM的摩擦力最高,VictoryTM (不钢) 的摩擦力最低.
- DISCREETTM表现出最高的表面粗度 (Sa),其次是Symetri ClearTM.
- 对于测试的支架,表面粗度和摩擦力之间没有发现统计学意义上的相关性.
结论:
- 滑动过程中的摩擦力不仅仅取决于表面粗度.
- 单晶陶支架通常表现出更高的FF和更低的表面粗度.
- 尽管表面粗度很高,但DISCREETTM显示了与金属支架相比较低的FF,突出显示了复杂的相互作用.
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