The CBCT technique utilizes a circular or rectangular cone-shaped X-ray beam that rotates 360° while the patient's head is stabilized with a head rest or strap. The X-ray source and an image detector on the opposite side simultaneously move around the patient. Single projection images, also known as "basis" images, are captured from every aspect during this process. They resemble taking multiple lateral cephalometric and posteroanterior radiographic images that are each slightly offset from one another. The collection of these basis projection images is known as the projection data, which is subsequently programmatically reconstructed to generate a 3D volumetric data set that can be used to produce images in the axial, sagittal, and coronal planes.