title: [Bacteriological characterization of gingivitis-inducing plaque depending on different sugar levels of the diet].
abstract: In a time period of 21 days an experimental gingivitis was induced in 8 volunteers. Four volunteers received a carbohydrate-reduced, the other 4 persons a carbohydrate-enriched diet. Clinical investigations on the development of plaque and gingivitis and bacteriological examinations of the supragingival microflora were performed simultaneously. The change in the composition of the supragingival plaque-microflora were nearly independent of the amount of food-carbohydrate. In the beginning of the experiment all volunteers had an almost pure streptococcal microflora but during the course of the experiment, the supragingival flora developed to a complex microflora with 50% anaerobes. The reduction of the number of streptococci was accompanied by an increase in the number of Gram-negative rods and actinomycetes. The development of gingivitis in persons with carbohydrate-enriched food was more rapid than in persons with carbohydrate-reduced food. It was striking that the occurrence of clinical symptoms correlated with the increase of the number of Actinomyces viscosus in the plaque material.
mesh_terms: D000190:Actinomyces / Q000254:growth & development; D001419:Bacteria / Q000254:growth & development*; D003773:Dental Plaque / Q000382:microbiology*; D004040:Dietary Carbohydrates / Q000008:administration & dosage*; D005260:Female; D005891:Gingivitis / Q000209:etiology*; D006801:Humans; D008297:Male; D013045:Species Specificity
chemical_list: D004040:Dietary Carbohydrates
vernacular_title: Zur bakteriologischen Charakterisierung der Gingivitis induzierenden Plaque bei unterschiedlichem Zuckergehalt der Nahrung.