Since introduction of cone beam CT (CBCT) in dentistry in the late 1990s, CBCT imaging proved to be superior to the regular medical CT costs and radiation exposure were reduced and CBCT had more spatial resolution with voxel size <80 μm. Regular CT scans failed to deliver accurate 3D reconstruction of dentition due to limited spatial resolution.
The importance of three-dimensional (3D) imaging and analysis of 3D study casts of dental arches based on computed tomography scans (CT) is increasing in orthodontic diagnosis, treatment planning, and simulation.