[The level of secretory immunoglobulin A in the saliva and the body resistance of medical workers in the dental field].
Examinations of a group of dentists revealed that work at dentistry rooms involving a close contact of personnel with numerous allergens is conducive to decreasing the level of secretory IgA in the saliva. This indicates deterioration of the immune defense system of the body, particularly grave in nurses, orthodontists, and dental technologists.