基于三维表面分析的两种口内扫描仪的比较。
Comparison of two intraoral scanners based on three-dimensional surface analysis.
机构信息
Department of Orthodontics, School of Dentistry, Chonnam National University, 33 Yongbong-ro, Buk-gu, Gwangju, 61186, South Korea.
出版信息
Prog Orthod. 2018 Feb 12;19(1):6. doi: 10.1186/s40510-018-0205-5.
BACKGROUND
This in vivo study evaluated the difference of two well-known intraoral scanners used in dentistry, namely iTero (Align Technology) and TRIOS (3Shape).
METHODS
Thirty-two participants underwent intraoral scans with TRIOS and iTero scanners, as well as conventional alginate impressions. The scans obtained with the two intraoral scanners were compared with each other and were also compared with the corresponding model scans by means of three-dimensional surface analysis. The average differences between the two intraoral scans on the surfaces were evaluated by color-mapping. The average differences in the three-dimensional direction between each intraoral scans and its corresponding model scan were calculated at all points on the surfaces.
RESULTS
The average differences between the two intraoral scanners were 0.057 mm at the maxilla and 0.069 mm at the mandible. Color histograms showed that local deviations between the two scanners occurred in the posterior area. As for difference in the three-dimensional direction, there was no statistically significant difference between two scanners.
CONCLUSIONS
Although there were some deviations in visible inspection, there was no statistical significance between the two intraoral scanners.
背景
本体内研究评估了两种用于口腔领域的知名口内扫描仪的差异，即 iTero（登士柏西诺德）和 TRIOS（3Shape）。
方法
32 名参与者分别接受了 TRIOS 和 iTero 扫描仪以及常规藻酸盐印模的口内扫描。通过三维表面分析，比较了两种口内扫描仪之间的扫描结果，并与相应的模型扫描进行了比较。通过颜色映射评估了两个口内扫描仪在表面上的平均差异。计算了各个口内扫描与其相应模型扫描在所有表面点处的三维方向的平均差异。
结果
在上颌骨，两个口内扫描仪之间的平均差异为 0.057 毫米，在下颌骨为 0.069 毫米。颜色直方图显示，两个扫描仪的后牙区存在局部偏差。至于三维方向的差异，两个扫描仪之间没有统计学上的显著差异。
结论
尽管在可见检查中存在一些偏差，但两个口内扫描仪之间没有统计学意义。
Zotero 插件