动深度在动态循环疲劳阻力中的作用:体外研究
Giusy Rita Maria La Rosa1, Francesco Saverio Canova1, Luigi Generali2
1Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy.
International dental journal
|February 13, 2024
概括
咬牙运动深度显著影响内牙仪器循环疲劳耐力. 热处理的-文件,如 Reciproc Blue 和 Hyflex EDM,在特定的深度下表现出优越的耐久性,可能提高临床性能.
科学领域:
- 牙周内科医院 牙周内科医院 牙周内科医院
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- 循环疲劳阻力是内牙仪器寿命的关键因素.
- 了解动态运动,如,如何影响仪器耐用性,对于临床成功至关重要.
研究的目的:
- 对四种不同-内牙仪器系统的循环疲劳耐力产生不同动作深度的影响进行调查.
- 为了在动态循环负荷条件下比较热处理与未处理仪器的性能.
主要方法:
- 四个-系统 (Hyflex EDM,Rotate,Mtwo,Reciproc Blue) 进行了测试. 这些系统包括:
- 在指定的速度下,仪器经历了4种不同的动深度 (1-mm,2-mm,3-mm和3-mm/向后).
- 记录了骨折的时间 (TtF),并使用双向ANOVA和Bonferroni测试分析了数据.
主要成果:
- 所有仪器显示,与连续轴运动相比,前进动态运动的周期性疲劳阻力增加.
- 经过热处理的仪器表现出比未经处理的仪器显著更高的疲劳强度.
- 互惠蓝色和Hyflex EDM具有优越的TtF,深度为1-2毫米,而Mtwo和Rotate在深度为3毫米时表现最好.
结论:
- 咬牙运动深度会影响内牙仪器的循环疲劳耐力.
- 互惠蓝色和Hyflex EDM仪器显示出提高了耐用性,具有1-2毫米的深度.
- 优化动参数可能会改善仪器的寿命,减少临床故障.
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