评估不同类型的透明对齐剂的颜色稳定性和材料表面稳定性,在黄染色下进行体外染色
Ketai He1, Mingjie Xu1, Wen Liao2
1State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China.
BMC oral health
|September 24, 2025
概括
清晰的对齐器可以染色,影响美学. 这项研究发现,大多数清晰的对齐材料在暴露于黄素时显示出显著的颜色变化,一些材料比其他材料更容易染色和表面退化.
科学领域:
- 生物材料科学 生物材料科学
- 牙科材料科学 牙科材料科学
- 矯正牙科 矯正牙科是一種矯正牙科.
背景情况:
- 审美是患者选择正义牙清晰对齐器的一个关键因素.
- 透明调整器的色彩稳定性不佳可能会对患者的满意度和治疗遵守产生负面影响.
- 了解对齐器材料的颜色和表面稳定性对于临床应用至关重要.
研究的目的:
- 为了评估不同正统清晰对齐器材料的体外颜色和表面稳定性.
- 为了评估不同度的黄素对对齐器美学的影响.
- 为了比较不同类型的调整器对染色和表面退化的易感性.
主要方法:
- 四种类型的透明对齐器 (Invisalign,Angelalign,Spark,Dreve) 和一个控制膜被浸泡在不同度的黄素溶液中12小时和7天.
- 使用色度计量颜色变化,并以国家标准局 (NBS) 单位表示.
- 使用扫描电子显微镜 (SEM) 和原子力显微镜 (AFM) 分析了表面形态.
主要成果:
- 所有测试的对齐器材料,除了对照膜,在黄素暴露12小时和7天后表现出明显的极端颜色变化.
- Angelalign最初显示出更明显的颜色变化,而Invisalign在所有条件下与Dreve相比始终显示出更高的颜色变化值 (ΔE*).
- SEM和AFM表明,基于聚氨 (PU) 的对齐器比基于聚乙烯四甲酸糖 (PET-G) 的对齐器更容易发生表面形态变化.
结论:
- 整形牙透明调整器的美学色彩稳定性取决于材料,并且可以通过黄等染色剂显著受到损害.
- 与基于PET-G的对齐器相比,基于聚氨的对齐器对表面降解和颜色变化的敏感性更大.
- 提高透明对齐器材料的固有色彩稳定性对于提高患者满意度和 ортодонтика治疗的临床结果至关重要.
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