[Maxillofacial tomography (MT tomography) in the diagnosis of diseases on the middle 1/3 of the face].

Maxillofacial tomography apparatus (MT tomography) is a panoramic tomographic unit, radiographing in recumbent position. Its image can show most of the anatomic structures of maxillofacial bones. Through comparative examination between the conventional roentgenograms (general radiographs, pantomographs and laminagrams) and MT tomography of 48 patients, it is found that MT tomography has certain advantages for the diagnosis of the range, extent and quality of fracture, tumour and tumour like disease in maxillofacial bones and that MT tomography can serve as an effective auxillary method of diagnosis for the conventional roentgenograms used for maxillofacial bones.