The accuracy assessment of dental traditional and digital impression methods
Abstract
Author(s): Chung-Chih Tseng
Objectives: This study aimed to evaluate the accuracy and availability of different scanning technologies, including the conventional impression, oral, and CBCT methods.
Materials and Methods: An artificial model was used as the basic model. The basic model was scanned to obtain the standard model. The basic model was subjected to CBCT scanning, intraoral scanning, and traditional impression five times, respectively. Finally, the obtained scanned STL file information was compared with the standard model and analysed for accuracy differences.
Results: The overall error of the CBCT method was 0.67 mm ± 0.13 mm, the general error of the traditional impression method was 0.62 mm ± 0.15 mm, and the overall error of the digital oral scan was 0.86 mm ± 0.32 mm, the precision of the conventional impression method is higher than others.
Conclusions: The accuracy of dental impression information through digital and traditional scanning techniques. Clinical Relevance Traditional impression methods have higher accuracy than digital oral scanning and CBCT methods, but all three can be used for denture restoration
