[The degree of density of three anatomic regions in the orthopantomograph].

In the present study the degree of density of three anatomic regions in 215 orthopantomographs was evaluated. The three anatomic regions which were selected were: the maxillary sinus, the hard palate and the hard tissues (enamel and dentin) of the right lower first molar. The degree of density was correlated with the age and sex of the patients and it was found to increase with the age. The difference of the density was found to be statistical significant between the decade 1-10 compared to the other decades of age. The degree of density was greater in the women in all three anatomic regions but statistical significant only in the first molar region and in the decades 1-10 and 31-40.