各种染色饮料对CAD/CAM PMMA假牙颜色稳定性的影响:一个体外研究
Ehab Alouch1, Mawia Karkoutly2, Omar Teriaky1
1Department of Removable Prosthodontics, Damascus University, Damascus, Syrian Arab Republic.
Clinical and experimental dental research
|March 3, 2024
概括
计算机辅助设计/计算机辅助制造 (CAD/CAM) 聚甲基甲酸 (PMMA) 假牙与传统的烯酸牙相比,具有更高的颜色稳定性. 在长时间浸泡在咖啡和红茶等染色饮料中后,观察到这种增强的耐用性.
科学领域:
- 牙科材料科学 牙科材料科学
- 牙修复 牙修复 牙修复 牙修复 牙修复
- 材料降解研究 材料降解研究
背景情况:
- 传统的烯酸假牙容易因常见饮料而变色.
- 牙科技术的进步提供了具有潜在改进性能的替代材料.
- 了解CAD/CAM PMMA的色彩稳定性对于长期的假肢成功至关重要.
研究的目的:
- 为了比较CAD/CAM PMMA假牙与传统的烯酸牙的颜色变化.
- 评估染色饮料 (咖啡,红茶,可乐) 对假牙颜色的影响.
- 为了评估长时间浸泡期间 (1,7,30天) 的色彩稳定性.
主要方法:
- 使用了两种类型的假牙:传统的烯酸和磨的CAD/CAM PMMA.
- 标本被浸入蒸水 (对照),咖啡,红茶或可乐中.
- 在基线,第1天,7天和第30天使用光谱仪测量了颜色变化.
主要成果:
- 传统的烯酸牙在30天后显示咖啡的颜色变化明显.
- 在红茶30天后和咖啡7天和30天后,在牙类型之间发现了颜色变化的统计学上显著差异.
- CAD/CAM PMMA 牙对咖啡和红茶的染色有较强的抵抗力.
结论:
- 与传统的烯酸牙相比,CAD/CAM PMMA假牙具有更高的颜色稳定性.
- 这种改善的稳定性在暴露于咖啡和红茶等染色饮料后尤其明显.
- 在假牙制造中,CAD/CAM PMMA代表了一种更耐色的选择.
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