The morphological evaluation of frontal sinuses in the human skulls.

: Using cranial radiographs of 214 skulls representing white population, morphological features (size and shape) of the frontal sinuses were evaluated and compared with data on Eskimo and Indian series representing yellow population. In both populations, white and yellow, the sinuses are better developed and are usually larger in men than in women. The sinuses of smooth contour are usually smaller than those with serrated contour, and in case of the first ones, the left one is missing. Distinct racial, qualitative and quantitative differences occur in the presence and size of the frontal sinuses area.