A tomogram or slice through the jaws which displays all the teeth and supporting structures on one film. Only structures within the focal trough will be visualized. The focal trough for a DPT is usually horseshoe-shaped. The image quality is always inferior to that of intra-oral films, and radiographic interpretation needs to take into account tomographic blur and ghost shadows produced by anatomical structures. Formerly known as an orthopantomogram.
Dental panoramic tomogram
Dental panoramic tomogram machine