Oh Hyun-Su, Lim Young-Jun, Kim Bongju, Kim Myung-Joo, Kwon Ho-Beom, Baek Yeon-Wha
Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul 03080, Korea.
Dental Life Science Research Institute, Seoul National University Dental Hospital, Seoul 03080, Korea.
Materials (Basel). 2021 Apr 30;14(9):2340. doi: 10.3390/ma14092340.
This study was performed to verify the influence of scanning-aid materials on the accuracy and time efficiency of full-arch scanning with intraoral scanners. The full-arch reference model was constructed by a 3D printer and scanned with a model scanner to obtain the reference dataset. Four experimental groups (application of ScanCure (SC-80, ODS Co, Incheon, Korea), IP Scan Spray (IP-Division, Haimhausen, Germany) and Vita Powder Scan Spray (Vita Zahnfabrik, Stuttgart, Germany), and no treatment) were designed, and the scans were executed (trueness, n = 5) using two intraoral scanners: I500 (Medit Co., Seoul, Korea) and TRIOS (3shape, Copenhagen, Denmark). All acquired scan data were compared with the reference datasets using the 3D superimposition method and 2D linear measurements. In the 3D analysis, intragroup data were compared with each other (precision, n = 10). Time efficiency was also verified by comparing the scan times of the four experimental groups. In the 3D analysis, the root mean square (RMS) value of the precision of the scanned image was statistically significantly more accurate in the scanning-aid agent-treated groups than in the no-treatment group < 0.05). However, the RMS values of trueness and the types of scanning-aid materials were not significantly different. In the 2D measurements, the increased scan distance generated a greater distance deviation. The working time was significantly shorter in the scanning-aid agent groups than in the no-treatment group, with statistical significance ( < 0.05). Therefore, in clinical situations, the application of scanning-aid materials is recommended to reduce scanning time and more efficiently obtain the full-arch scanned image.
本研究旨在验证扫描辅助材料对口腔内扫描仪全牙弓扫描准确性和时间效率的影响。通过3D打印机构建全牙弓参考模型，并用模型扫描仪进行扫描以获得参考数据集。设计了四个实验组（使用ScanCure（SC - 80，韩国仁川ODS公司）、IP Scan Spray（德国海姆豪森IP部门）和维他粉末扫描喷雾（德国斯图加特维他牙科工厂），以及不进行处理），并使用两台口腔内扫描仪：I500（韩国首尔Medit公司）和TRIOS（丹麦哥本哈根3shape公司）进行扫描（准确性，n = 5）。使用3D叠加法和2D线性测量将所有获取的扫描数据与参考数据集进行比较。在3D分析中，组内数据相互比较（精密度，n = 10）。还通过比较四个实验组的扫描时间来验证时间效率。在3D分析中，扫描辅助剂处理组扫描图像精度的均方根（RMS）值在统计学上显著高于未处理组（P < 0.05）。然而，准确性的RMS值和扫描辅助材料的类型没有显著差异。在2D测量中，扫描距离增加会产生更大的距离偏差。扫描辅助剂组的工作时间明显短于未处理组，具有统计学意义（P < 0.05）。因此，在临床情况下，建议应用扫描辅助材料以减少扫描时间并更有效地获取全牙弓扫描图像。
