酸性环境对不同间接修复材料的颜色和半透明度的影响
Abdelaziz A Omara1, Hesham I Othman2, Mohamed F Aldamaty3
1Department of Fixed Prosthodontics, Faculty of Dental Medicine, Misr University for Science and Technology, Cairo, Egypt.
BMC oral health
|April 19, 2024
概括
高半透明的石在模拟的胃酸中显示了最小的颜色变化,使其成为在酸性口腔环境中美观牙修复的理想选择. 其他材料经历了更显著的降解.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料研究 生物材料研究
- 恢复性牙科 恢复性牙科
背景情况:
- 间接修复材料对于牙的美学和功能至关重要.
- 口腔环境,特别是酸性环境,会影响牙修复的长寿和外观.
- 了解模拟胃酸暴露下的物质降解对于临床建议至关重要.
研究的目的:
- 评估模拟胃酸对各种间接修复材料颜色和半透明度的影响.
- 为了比较半透明的稳定性,二氧化,树脂纳米陶,和聚乙烯基 (PEEK) 复合材料,当暴露在酸性条件下.
主要方法:
- 准备了四种材料类型的36个圆盘形样本:半透明的,二氧化,树脂纳米陶和用复合材料嵌的PEEK.
- 样品在37°C的模拟胃酸 (pH1.2) 中浸泡96小时.
- 在模拟的一年临床期间测量了颜色变化 (ΔE00) 和半透明度 (RTP00).
主要成果:
- 在一年的酸浸浸后,在所有材料中观察到颜色和半透明度变化的统计学上显著差异 (P < 0.001).
- 半透明和树脂纳米陶呈现出最小的颜色变化.
- 用复合材料涂装的聚乙乙 (PEEK) 显示出最高的颜色变化.
结论:
- 对于美学性牙科修复,特别是在酸性口腔环境的患者中,建议使用高半透明.
- 在酸性条件下材料的稳定性差异很大,影响长期的美观结果.
- 进一步的研究可能会探索这些材料在各种口腔条件下的长期临床性能.
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