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环境温度对UV-C彩色印刷性能的影响
Xuedong Bai1, Mengxiao Xu1, Anqi Wang2
1Dental Materials Science, Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region, PR China.
Journal of dentistry
|December 18, 2025
概括
环境温度显著影响3Y-TZP合金上的222nm紫外线-C彩色印刷. 较低的温度增加了颜色变化 (ΔE*),减少了总色差 (TP),同时也加速了物质恢复,为牙科应用提供了控制.
科学领域:
- 材料科学 材料科学 材料科学
- 表面工程是什么?表面工程是什么?
- 光学属性 光学属性
背景情况:
- 3Y-TZP是牙科中广泛使用的陶.
- 紫外线提供了表面修改和彩色印刷的潜力.
- 控制光学属性对于美观的牙科修复至关重要.
研究的目的:
- 为了研究环境温度对3Y-TZP在222nm紫外线-C彩色打印过程中的光学性能变化的影响.
- 为了确定温度如何影响色彩变化 (ΔE*) 和总色彩差异 (TP) 随时间推移.
- 为了评估在不同温度下照射后光学属性的恢复率.
主要方法:
- 3Y-TZP磁盘受到222nm的UV-C辐射,持续时间从15分钟到24小时.
- 使用冷板和热板 (280.15 K, 310.15 K, 340.15 K, 360.15 K) 精确控制环境温度.
- 颜色参数 (CIE*L*a*b*) 在辐射前和辐射后的14天内进行测量,以计算 ΔE*, ΔE*00和TP,并使用SPSS 28.0.0进行统计分析.
主要成果:
- 较低的环境温度导致更高的直接 ΔE* 和减少的 TP,并观察到二次关系.
- 对于24小时的辐射,冷却组 (CG, 15.30) 的 ΔE* 是最高的,加热组 1 (HG1, 5.75) 的 ΔE* 是最低的,而 TP 则呈现相反的趋势.
- 较低的温度加速了 ΔE* 和 TP 的恢复,尽管在长时间照射的 CG 组中,TP 的恢复是不完整的.
结论:
- 环境温度显著影响222nm紫外线-C彩色印刷在的结果.
- 较低的温度增强了即时的颜色变化和TP减少,并促进了更快的物业恢复.
- 这种技术提供了一种可控的方法,用于美学色彩定制牙科石修复的牙.
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