[Determination of the changes in the quantity, pH, protein and erythrocytes of gingival fluid in students with dental-jaw deformities and chronic catarrhal gingivitis after hygienic-therapeutic course with the toothpaste Propodent].

The changes in the quantity, pH, protein and erythrocytes were studied in the gingival fluid of students with chronic catarrhal gingivitis and impaired oral hygiene due to dental-jaw deformities (DJD) after a 5-week hygienic-therapeutic course with the toothpaste "Propodent". The data about the indices studied in the experimental group--24 children and juveniles with DJD and chronica catarrhal gingivitis, aged from 8 to 16, were compared with the values of the indices studied in the control group of 10 children and juveniles without DJD and with clinically health periodontium of the same age. The comparison between the mean values of the quantity gingival fluid, pH, protein and erythrocytes of the experimental group, before and after the treatment, revealed: 78.6% reduction of the quantity of gingival fluid, 3.8% increase of pH, 93.74% reduction of protein and 95.98% reduction of erythrocytes. In this way, the indices studied in the experimental group after the treatment did not differ with statistical significance from those of the healthy children. The methods for determination of the quantity, pH, protein and erythrocytes, proposed by T. Dzemileva and P. Nenov, objectivized the clinically observed favourable changes in gingiva as a result from the hygienic-therapeutic course in the students with DJD and chronic catarrhal gingivitis.