The purpose of this study is to analyze the accuracy of digital dental models acquired using cone beam computed
tomography (CBCT), an electromagnetic wave method. While there are many reports comparing CBCT
and intra oral scanners, there are few comparative studies on the accuracy of different digital dental models
acquired using CBCT. Targeting this problem, in this study, we tried to analyze the accuracy of dental prosthesis
data generated by different CBCT models with 3D computer programs. To this end, a single preparation
dental model, 3-unit bridge dental model, and full dental model were selected and photographed using CBCT
to obtain a DICOM file, which was later converted into an STL file. The converted STL file was analyzed qualitatively
and quantitatively for trueness and precision using a 3D superimposition program. Although there
were statistically significant differences in the trueness values of the three digital dental models (P < 0.05), no
significant differences could be observed in the precision values (P > 0.05). In conclusion, using CBCT-based
dental models, it may be difficult to fabricate dental prosthesis due to a distortion between the rounded part of
the tooth, the prepared tooth, and adjacent teeth. However, if the accuracy of sharpness in CBCT images can
be increased, in the future, this method may be employed to manufacture dental prosthesis for clinical applications.