Panoramic radiography in dentistry.

Examples of panoramic radiography equipment in use are briefly reviewed and the differences pointed out between those operating on the principle of tomography and other "panoramic" instruments. The various uses to which panoramic radiography is put are described and the problems involved in using them explained. The advantages and disadvantages of panoramic radiography are listed and comparisons drawn between the degree of clarity and precision for diagnosis obtained with it as against that obtained using normal periapical radiographs.