A new technique for imaging the temporomandibular joint with a panoramic x-ray machine. Part II. Positioning with the use of patient data / Uma nova técnica para visualização da articulação temporomandibular (ATM) executada num sistema panorâmica. Parte II. Posicionamento do paciente baseado em dados demográficos

In the first article of this series, a new panoramic technique for visualization of the temporomandibular joint was described. In this article, it is shown that the patient positioning required for the implementation of this technique can be inferred from the gender, ethnicity, and bizygomatic width of the patient. Tables for estimating positioning in the Panoral panoramic machine have been derived from the analysis of data from 196 patients. Use of this approach eliminates the requirement for an additional submentovertex radiograph and the associated radiation dose to the patient

Comparative radiographic study of human and animal long bone patterns / Estudo comparativo do padrão radiográfico de ossos longos humanos e animais

The objective of this study was to test the hypothesis that certain radiographic features can be found to distinguish between human and animal long bone fragments, and therefore would be useful as an adjunct in forensic science identification. Using proposed radiographic criteria, 13 archeologists and 12 dentists were asked to identify 20 radiographic samples as representing human or animal bone. Results showed that archeologists correctly identified 86.8 percent of the samples, and dentists correctly identified 81.9//. Based on the results of this study, it was conclueded that radiographic interpretation of long bone fragments may be a useful aid in a forensic science investigation of human and animal remains