In order to evaluate the pathological condition, the radiographic image of the normal anatomical structure must be correctly known. The evaluation of pathological lesions of the head and neck regions involves routine use of radiographs in the main attempt to determine the nature of the abnormality and / or the pathological process. In the dental clinic in Brazil, in general, the dental surgeon mainly performs the intraoral radiographic examinations, since he works in his routine of attendance with intraoral X-ray equipment. Thus, it has been the protocol of service to request a panoramic radiography, when the patient first consulted, based on the clinical examination and the request for care. This is very important so that the professional can arrive at a differential diagnosis as close as possible. The reality is that we will not always have the pathognomonic signs of the pathologies (main characteristics of the lesion).