RESUMO
By light microscopy there was studied gingival tissues structure depending upon age and gender in 96 relatively healthy persons and 80 patients with chronic apical periodontitis. It was disclosed that in gingival mucosa of patients with chronic apical periodontitis the interstitial space volumetric density and numerical density of tissue leucocytes increased in the first place due to neutrophils. Between the healthy men and women there was no significant difference in structural organization of the gum as well as between the patients of different gender. The only sign was that in healthy men and women with age progressing only lymphatic vessels area decreased on gingival mucosa microscopic section. In patients with chronic apical periodontitis both blood and lymphatic vessels were involved through decrease of relative capillary density.
