审美区的衰老修复:视觉和光谱测量结果
Taiseer A Sulaiman1, Tariq A Alsahafi1,2, Mostafa Sulaiman1
1Department of Restorative Sciences, Adams School of Dentistry, University of North Carolina School of Dentistry, Chapel Hill, North Carolina, USA.
概括
这项研究评估了牙修复材料在老化后的色彩稳定性. 重刷可以恢复原来的颜色,但材料选择会影响长期的美学效果.
科学领域:
- 牙科材料科学 牙科材料科学
- 审美牙科 审美牙科
- 生物材料是一种生物材料.
背景情况:
- 直接和间接的修复材料用于审美区牙修复.
- 随着时间的推移,颜色的变化会导致患者的不满和更换需求.
- 缺乏临床监测需要方法来评估颜色稳定性.
研究的目的:
- 评估直接和间接修复材料的色彩稳定性.
- 在咖啡和模拟牙刷中同时老化后评估材料.
- 为了确定重新抛光对颜色稳定性的影响.
主要方法:
- 测试了七种修复材料:可包装复合树脂 (PC),可流动复合树脂 (FC),脱酸盐 (LD),4%的亚特里亚部分稳定 (4Y-PSZ),加强酸盐 (LS),增材制造的纳米陶 (AM) 和磨砂复合树脂 (MC).
- 材料经历了28天的老化,包括咖啡浸泡和牙刷模拟.
- 使用光谱光度和摄影评估了颜色稳定性,在重新抛光前后计算了颜色差异 (ΔEoo).
主要成果:
- 材料类型和老化都显著影响了颜色变化 (p < 0.001).
- 添加剂制造的纳米陶 (AM) 在老化后显示出最大的颜色差异 (9.1 ± 0.87).
- 对于所有材料来说,重新抛光降低了DEoo,其中4Y-PSZ表现出最低的值 (0.70 ± 0.53).
结论:
- 二酸盐 (LD) 板在老化过程中表现出优越的色彩稳定性.
- 重新抛光可以使审美材料恢复到可以接受的颜色.
- 增材制造的纳米陶 (AM) 缺乏色彩稳定性,并显示边缘染色,突出显示了材料选择对美观寿命的重要性.
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