两体磨损的各种微层陶在的修复:一个体外研究研究
Svenja Stuhr1, John Meinen2, Michael Reise3
1Graduate student, Department of Prosthetic Dentistry, University Hospital, Munich, Germany.
The Journal of prosthetic dentistry
|November 15, 2025
概括
微层陶 (μLCs) 和贴面石表现出磨损,与单质石不同. 增加的周期加剧了磨损,可能会暴露基板,面材料的行为更像是天然的牙.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料磨损分析
- 恢复性牙科 恢复性牙科
背景情况:
- 微分层陶 (μLC) 技术的目的是防止土的恢复破碎.
- 需要对μLCs的磨损特征进行进一步的研究.
- 了解磨损对于薄陶修复的寿命和临床成功至关重要.
研究的目的:
- 量化μLCs的磨损和颗粒大小.
- 为了比较μLC的磨损与贴面,单体,和人类的牙.
- 为了评估周期对材料磨损的影响.
主要方法:
- 微层陶 (μLC) 皇冠 (CER,IQS,MIY,STR) 和对照组 (VEN,MZ,HUM) 进行了模拟的.
- 皇冠和对手的双体磨损,以及μLC颗粒大小,在60,000,120,000和600,000个周期后进行测量.
- 统计分析包括非参数方法和邦费罗尼校正的对对比.
主要成果:
- 材料类型和周期显著影响了体积磨损 (P≤.003).
- MiYO结构 (MIY) 比结构 (STR) 的磨损更高;其他μLCs是相似的. 人类牙 (HUM) 的磨损与CER,STR,IQS和VEN相当.
- 在体积磨损和颗粒大小 (P<.001) 之间存在负相关性. 单质 (MZ) 磨损是无法量化的,而HUM没有显示任何对抗性磨损.
结论:
- 微层陶 (μLCs) 和面板石显示出可测量的磨损,与单一石不同.
- Veneered 合金的磨损模式更接近模仿人类牙,表明生理上的兼容性.
- 增加的周期加剧了磨损,造成暴露底层的风险.
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