叠加参考区域对部分牙部口腔内扫描精度的影响
Enas Elhamy Negm1, Mangala Patel2, Paul Ryan3
1PhD student, Centre for Oral Bioengineering, Institute of Dentistry, Queen Mary University of London, London, England, United Kingdom; Assistant Lecturer, Department of Prosthodontics, Faculty of Dentistry, Tanta University, Tanta, Egypt.
The Journal of prosthetic dentistry
|March 31, 2024
概括
参考区域显著影响3D口内扫描的准确性. 在 palatal 和 edentulous 区域,Primescan 显示出卓越的准确性,而 TRIOS 3 和 Emerald 在特定区域 (如远端延伸和牙) 显示出强度.
科学领域:
- 牙科技术 牙科技术
- 数字牙科数字牙科
- 生物医学工程 生物医学工程
背景情况:
- 精确的3D文件对齐对于比较数字扫描至关重要,依赖于参考区域选择和对齐算法.
- 关于不同参考区域对口内扫描精度的影响存在缺乏共识.
研究的目的:
- 评估三个叠加的参考区域对三个口内扫描仪的精度的影响.
- 为了比较 Primescan,TRIOS 3 和 Emerald 扫描仪在部分牙的部模型中的性能.
主要方法:
- 使用3个口腔内扫描仪 (Primescan,TRIOS 3,Emerald) 从肯尼迪II类树脂造器中获得了30个数字扫描.
- 扫描被叠加使用最佳匹配对齐与三个参考区域 (整个区域,天花板,牙) 与实验室扫描的参考文件.
- 在3D分析程序中使用根平均平方偏差量化精度.
主要成果:
- 在口腔和边界无牙区域中,Primescan显示了更均的颜色图和更高的准确性 (真实性和精度).
- TRIOS 3 呈现出最高的远端延伸真实性,而 Emerald 显示出最高的牙真实性.
- 在远端延伸和牙区域,Primescan实现了最高的精度.
结论:
- 选择最适合对齐的参考区域显著影响数字扫描的准确性.
- 在 palatal 和边界无牙区域中,Primescan 显示了最佳的整体准确性.
- 扫描仪的性能在不同地区有所不同,TRIOS 3 (远距离延伸真实性) 和 Emerald (牙真实性) 的特定优势.
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