Survey of 77 males aged 22 to 55 including 43 pilots (main group), 24 non-flying employees (comparison group) and 10 essentially healthy men with sanitized oral cavity (control group) revealed caries in 100% members of groups 1 and 2. Prevalence of other than caries pathologies was higher in the group of pilots. Analysis of mixed unstimulated saliva showed calcium and phosphates reduction by half in 50% and 30% of pilots, respectively. Investigation of hair elemental composition displayed also deficiency of Ca and P in pilots. The authors recommend methods for dental rehabilitation as an indispensable part of medical care for flying personnel.