Transport: Pilots' Teeth

Pilot's Teeth

After long flights at high altitudes, many commercial pilots are temporarily deaf, hear waterfalls or hissing and crackling sounds that make them sour-tempered and touchy. Army and Navy pilots have the same sensations after tactical flights involving high-speed dives. These sensations were long ago traced to failure of the Eustachian tubes—passages connecting the throat and middle ear—to equalize ear pressures with changes in altitude.

Two and a half years ago Dr. Glenn E. Willhelmy of St. Louis, a Naval Reserve dentist, reported to the Navy that such ear troubles, along with...

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