[The peculiarity of the regeneration of the gingival mucosa after the operation of the tooth extraction].

The indices of the mitotic activity, the quantity of the double-nucleated cells and the dying nucleus coefficient in the basal and spinous layers of the rat multilayer flat epithelium after the extraction a tooth were studied. The experiments were carried out on 45 nonlinear white mature rats - males. After peeling the gingiva around the dental neck we extract three basal teeth.

[Functional-morphologic aspects of changes of mucosal gingiva microcirculatory bed vessels in experimental gingivitis against the background of hypercholesterolemia].

The study of mucosal gingiva microcirculatory bed in conditions modeling the change of vascular wall permeability that promotes cell migration and plasmorrhagia. The experiments were made on 3 groups of chinchilla rabbits--body weight 1,7-2,5 kg: I-experimental gingivitis (10 animals); II-experimental hypercholesterolemia--the rabbits received aterogenic diet (0,3 g/kg of cholesterol) (10 animals). Two month after the aterogenic diet, gingivitis was modelled against the background of hypercholesterolemia (control for group II).

[Ultrastructural characteristics of gingival mucous cellular composition in experimental gingivitis].

The aim of the work was to estimate morphological changes in cells of gingival mucous membrane in the experimental gingivitis model. Fifty rats with the body weight of 120-160 gr. were used in the experiment.