“…In the radiograms we could not observe alterations in the development of the paranasal sinuses. This is also the opinion of McGovern, 21 Ersner,30 and Owens,53 who clearly established that there is no influence on the development of these cavities. In 47 cases gathered by 25 observers, 46 ex¬ hibited clinical or x-ray evidence of a normal sinus development, regardless of whether the cases were unilateral or bilateral.…”