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Luka Šimunović¹, Sara Čekalović Agović², Antun Jakob Marić³

¹Department of Orthodontics, School of Dental Medicine, University of Zagreb, 10000 Zagreb, Croatia.

|April 27, 2024

概括

透明对齐器可以从咖啡等常见饮料中染色. 聚氨对齐器,特别是3D打印的,比PETG层对齐器更容易染色,而PETG层对齐器提供更好的美学稳定性.

科学领域:

矯正牙科矯正牙科是一種矯正牙科.
材料科学材料科学材料科学
聚合物化学聚合物化学

背景情况:

清晰对齐器由于其美学优势而越来越受欢迎.
了解透明对齐剂与常见染色剂的稳定性对于患者的满意度至关重要.

研究的目的:

评估不同透明调整器材料在接触常见染色饮料时的颜色和化学稳定性.
为了比较热成型对齐器与3D打印对齐器的性能.

主要方法:

来自四个品牌的聚氨基热成型和3D打印的对齐器暴露于咖啡,黑茶,可口可乐和红牛.
在不同时间点使用VITA Easyshade紧色度计测量颜色变化.
化学稳定性使用减弱总反射率-里埃变换红外光谱 (ATR-FTIR) 进行评估.

主要成果:

咖啡被确定为最重要的染色剂,Tera Harz TC85对齐器显示出最明显的颜色变化.
与热成型对齐器相比,3D打印的对齐器表现出更大的颜色变化.
与纯聚氨对齐器相比,带有PETG外层的对齐器表现出较强的抗污染和化学变化的抗性.

结论:

品牌,饮料类型和制造方法 (热成型与3D打印) 显著影响透明对齐器的色彩稳定性.
推使用PETG层对齐器,以保持美学完整性,因为它们对染色和化学降解的抗性更强.
材料成分在透明对齐剂对饮食剂变色的易感性中起着关键作用.

关键词:

通过3D打印打印3D打印.里埃变换红外光谱法红外光谱法调整器调整器调整器颜色颜色颜色颜色颜色

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