Invasion of Actinomyces and existence of components react with Actinomyces antigen in inflamed gingiva.
D000190:Actinomyces / Q000276:immunology*; D000196:Actinomycosis / Q000276:immunology*; D000942:Antigens, Bacterial / Q000276:immunology*; D005891:Gingivitis / Q000276:immunology*; D006801:Humans; D008214:Lymphocytes / Q000166:cytology / Q000276:immunology
D000942:Antigens, Bacterial