陶牙系统的标准化程度
Alejandra Díaz Hernández1, Ana María Martín Casado2, Miguel Gómez-Polo1
1Department of Prosthodontics, Faculty of Dentistry, University Complutense of Madrid, 28040 Madrid, Spain.
Materials (Basel, Switzerland)
|October 28, 2023
概括
没有普遍的牙阴影指南存在. 这项研究发现,不同制造商的基本牙颜色是不可互换的,但混合它们可以扩大颜色空间,以更好地匹配阴影.
科学领域:
- 牙科材料科学 牙科材料科学
- 在假牙科的颜色科学.
背景情况:
- 缺少"黄金标准"的牙阴影指南使准确的阴影选择变得复杂.
- 主观的牙阴影匹配在实现一致和可预测的结果方面提出了挑战.
研究的目的:
- 评估基本牙颜色在不同陶系统中的可互换性.
- 研究混合基本牙颜色的潜力,以扩大可用的阴影范围并改善色彩空间覆盖范围.
主要方法:
- 使用光谱光度测量对三种陶系统 (Heraceram,Vita VM9,IPS Style) 的基本牙颜色进行分析.
- 通过创建10%的增量混合样本来扩展颜色系统.
- 使用欧几里德式 (ΔEab) 和CIEDE2000 (ΔE00) 公式计算系统内和系统间的颜色差异.
主要成果:
- 三种系统中没有一种基本的牙颜色可以互换,颜色差异超过了可接受度值 (ΔE00 2.9单位).
- 在10%的步骤中混合基本颜色显著扩大了原始系统所覆盖的牙色彩空间.
- 从不同制造商的基本牙颜色之间观察到明显的差异,即使具有相似的命名法.
结论:
- 来自不同制造商的基本牙颜色不等价,并表现出显著的颜色差异.
- 混合陶牙材料提供了一种可行的方法来增加可用的色调范围,并增强主观牙阴影匹配.
- 开发用于牙阴影选择的标准化协议仍然是恢复性牙科的关键需求.
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