Background: Military life leads to a great personal sacrifice and labor in the aircrew because they are constantly subjected to innumerable activities which have a great work pressure; therefore, the aim of this study was to determine the level of work stress associated with bruxism in the aircrew of the Peruvian Air Force. Methods: This was a cross-sectional study. A total of 204 crew members of the Peruvian Air Force from the Air Group were surveyed, and the stomatological clinical inspection was carried out. Each crew member was evaluated using the validated International Labor Organization- World Health Organization (ILO-WHO) Work Stress Scale, and clinical records were used to diagnose bruxismusing the Smith and Knight wear index. Results: Itwas foundthat 93.7%(n=191) of the crewmembersweremen and 6.3%(n=13)were women; and the percentage of intermediate-level stress was found to be ...