[Integral coefficient characterizing free radical oxidation and antioxidant defense, and the new "residual" coefficient reflecting the efficiency of using antioxidants in periodontitis].

The new integral coefficient between free-radicals oxidation (FRO) and antioxidant defense (AOD) during periodontitis is offered. This "residual" index may be used for evaluation of the decrease or increase in the balance between FRO and AOD in different fluids and organs under different conditions.

[State of tissue-vascular permeability in diabetic patients with parodontosis].

The state of the parodontium was studied clinically and morphologically in 70 patients suffering from diabetes mellitus. Blood histamine and serotonin level was determined fluorometrically. Gingivitis was revealed in diabetic patients; the severity of inflammatory changes in the gingiva proved to depend on the duration and the severity of diabetes mellitus.