在标准和高分辨率CBCT成像中评估由传统牙科材料制成的文物
General dentistry
|June 21, 2024
概括
牙科材料在束计算机断层扫描 (CBCT) 成像中创建了文物. 高分辨率扫描通常比标准分辨率扫描产生更多的文物,尽管一些材料有所不同.
科学领域:
- 牙科材料科学 牙科材料科学
- 放射学 放射学是一门学科.
- 生物材料是一种生物材料.
背景情况:
- 圆束计算机断层扫描 (CBCT) 对于牙科诊断至关重要.
- 来自修复材料的文物可以阻碍准确的成像解释.
- 了解特定材料的工件生成对于临床实践至关重要.
研究的目的:
- 从常见的牙科修复材料中识别和量化成像文物.
- 为了比较标准和高分辨率CBCT成像之间的文物形成.
- 根据它们的文物生成潜力对材料进行排名.
主要方法:
- 在体外研究中,使用嵌入在聚甲基甲酸板中的25种牙科材料.
- 使用标准和高分辨率CBCT扫描样本.
- 从材料表面的不同距离和方向测量灰色值差异 (ΔGV),以量化文物.
主要成果:
- 文物在材料和成像分辨率之间差异很大.
- 在标准分辨率下,AH 26根管密封剂和Heraenium S合金产生了最多的文物.
- 合金和Heraenium S在高分辨率下产生了最多的文物.
- 白柱DC和GC初始质器在高分辨率下产生了最少的文物.
- 随着物质表面的距离越来越远,文物减少了.
- 高分辨率通常会产生比标准分辨率更多的文物 (中位数 ΔGV 57.0 对比 46.0).
结论:
- 牙修复材料在CBCT成像中产生不同程度的工件.
- 图像分辨率影响文物生成,高分辨率通常显示更多.
- 材料选择和对文物潜力的认识对于准确的CBCT解释很重要.
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