两种牙膏对聚合物材料表面性能和染色易感性的影响
Rua Babaier1, Abdulaziz Alhotan2, Julfikar Haider3,4
1Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
概括
漂白牙膏粗的CAD-CAM材料,减少光泽,但减轻一些. 与CAD-CAM树脂复合材料相比,聚合物透的陶和直接树脂复合材料在用常规或美白牙膏刷牙后出现着更多的染色.
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
- 表面化学 表面化学
背景情况:
- 在修复牙科中,CAD-CAM材料被广泛使用.
- 表面特性和污染易受性对于长期的美学性能至关重要.
- 常规和美白牙膏对这些材料的影响需要调查.
研究的目的:
- 为了评估白化和磨砂常规牙膏对基于聚合物的CAD-CAM块表面特征的影响.
- 为了评估这些材料在人工牙刷磨损后的染色易感性.
主要方法:
- 四种CAD-CAM材料 (两种树脂复合材料,一种聚合物透陶,一种直接树脂复合材料) 用水,普通牙膏或美白牙膏人工刷牙.
- 测量了咖啡染色后的表面特性 (质量,光泽度,粗度,维克尔硬度) 和颜色变化 (CIE ΔE00).
主要成果:
- 白化牙膏显著降低了所有测试材料的光泽,增加了所有测试材料的粗度.
- 与树脂复合材料相比,聚合物透的陶和直接树脂复合材料在用牙膏刷牙后更容易受到咖啡染色的影响.
- 在刷牙和染色后,维克斯硬度在所有组中都下降.
结论:
- 白化牙膏可能会对CAD-CAM材料的表面美学产生负面影响.
- 某些CAD-CAM材料,特别是聚合物透的陶和直接树脂复合材料,在磨砂牙膏使用后更容易染色.
- 材料选择和对牙膏使用的患者建议对于维持CAD-CAM修复的长寿至关重要.
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