快速烧结多色的光学,结构和生物特征
Minja Miličić Lazić1, Nataša Jović Orsini2, Miloš Lazarević1
1Faculty of Dentistry, University of Belgrade, 11000 Belgrade, Serbia.
Biomedicines
|October 29, 2025
概括
牙氧化的快速烧结会导致牙质层明显的颜色变化,影响美学. 这个过程也改变了材料.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程 生物材料工程
- 陶工程 陶工程
背景情况:
- 多色石系统旨在通过模仿天然牙色调来提高牙修复的美学效果.
- 快速烧结协议对于椅子旁制造的土复原至关重要,提高了临床效率.
- 这项研究调查了快速烧结对牙的光学特性,相变化和细胞相互作用的影响.
研究的目的:
- 为了评估快速烧结对多色牙氧化颜色稳定性的影响.
- 用X射线衍射分析快速烧结后在中分析相变.
- 通过细胞测试,评估快速烧结的环氧表面的生物相容性.
主要方法:
- 使用CIE L*a*b*色彩空间测量了颜色稳定性.
- 阶段转换通过X射线衍射分析.
- 通过测量可湿性,表面能量和纤维细胞线粒体活动来评估细胞行为.
主要成果:
- 快速烧结导致颜色变化超过所有层的感知度值,质层超过了可接受度值 (ΔE* = 3.01).
- 在快速烧结后,X射线衍射揭示了立方相的减少和四角形相的增加 (T=49%,T1=27%,C=24%),检测到一个小的单临床相.
- 表面处理 (抛光,玻璃) 没有显著影响细胞粘附和增殖,尽管玻璃增加了水友性.
结论:
- 快速烧结会导致临床上可察觉的颜色变化,特别是在多色色的面膜层中,可能会损害美学结果.
- 在快速烧结过程中加快的加热和冷却速度阻碍了平衡,导致格子参数发生变化和形成一个转移稳定的T1阶段.
- 虽然快速烧结会影响光学和相位特性,但所产生的表面的生物相容性仍然与传统烧结可比.
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