牙颜色的树脂基复合材料在不同的牙颜色基板上的掩盖能力
1Faculty of Dentistry, Department of Prosthodontics, School of Dentistry, University of Istanbul, Çapa/Fatih, Istanbul, Turkey. nazmiye.sonmez@istanbul.edu.tr.
Odontology
|July 11, 2024
概括
牙色的树脂基复合材料 (GCRBC) 的颜色受到基底颜色和恢复厚度的显著影响. 较轻的GCRBC色调和较薄的修复显示出更大的颜色变化,特别是在较暗的基板上.
科学领域:
- 牙科材料科学 牙科材料科学
- 牙科中的色彩科学
背景情况:
- 精确的颜色匹配对于美观的牙科修复至关重要.
- 用牙颜色的树脂基复合材料 (GCRBC) 来模仿天然的牙组织.
- 了解影响GCRBC颜色的因素对于可预测的临床结果至关重要.
研究的目的:
- 为了研究不同的牙颜色基质和修复厚度如何影响GCRBCs的最终颜色.
- 在不同的条件下评估GCRBC的颜色差异 (∆E*ab和ΔE00).
- 将观察到的颜色差异与已确定的感知度和可接受度值进行比较.
主要方法:
- 五种颜色的GCRBC在1.0毫米和2.0毫米厚度中准备好.
- 样本被放置在三个不同的牙颜色基板 (ND1,ND5,ND9) 上.
- 使用光谱辐射计测量颜色参数,计算颜色差异并进行统计分析.
主要成果:
- 颜色差异 (∆E*ab, ΔE00) 在较浅的色调 (LP, Or) 中超过了可接受性值,在最深的基板上 (ND9) 厚度为1.0毫米.
- 紫色 (P) GCRBCs始终显示在可接受值以下的颜色差异,无论基底或厚度如何.
- 基板颜色对1.0毫米厚度的较浅色调 (LP,DP,Or) 的颜色差异产生了重大影响.
结论:
- 牙颜色,恢复厚度和基质颜色共同影响GCRBCs的最终颜色.
- 较轻的牙复合色调降低了掩饰能力,特别是较薄的 (1.0毫米) 修复.
- 像紫色这样的更深色调在不同的基板和厚度上提供了更好的色彩稳定性和可预测性.
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