在浸泡在各种溶液中的对齐板上进行力降解研究
Shou-Min Chen1,2, Tsui-Hsein Huang1,3, Chun-Te Ho1,2
1School of Dentistry, College of Oral Medicine, Chung Shan Medical University, Taichung, Taiwan.
Journal of dental sciences
|October 6, 2023
概括
隐形对齐膜在咖啡和可乐等饮料中降解. 与PETG和PET类型不同,聚氨 (PU) 调整器没有显著的强度损失,表明材料适合口服使用.
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
- 聚合物科学 聚合物科学
背景情况:
- 隐形对齐器容易受到环境退化,影响其机械性能.
- 在各种饮料中对齐材料的长期稳定性对于治疗有效性至关重要.
研究的目的:
- 为了比较在常见饮料中浸泡后三个隐形对齐膜的强度变化.
- 为了评估PETG,PET和PU对齐材料的降解阻力.
主要方法:
- 三种对齐器类型 (Duran T-PETG,Biolon-PET,Zendura FLX-PU) 在人造唾液,咖啡,茶,可乐和红酒中浸泡长达7天.
- 使用三点曲试验来评估强度.
- 使用独立的t测试 (P <0.05) 进行了统计分析.
主要成果:
- 在某些饮料中,Biolon (PET) 和Duran T (PETG) 薄膜显示出显著的强度降低.
- 由于具有防水表面层,Zendura FLX (PU) 在所有测试条件中没有显著的强度差异.
- 在大多数对齐膜中观察到强度衰减,除了那些含有热塑性聚氨 (TPU) 成分的薄膜外.
结论:
- 材料成分显著影响无形对齐器的饮料耐受性.
- 与PETG和PET相比,基于热塑性聚氨 (TPU) 的对齐剂在常见饮料中表现出优越的稳定性.
- 赞杜拉FLX (PU) 是不可见对齐器的一个有希望的材料,因为它对饮食因素的降解具有抗性.
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