Fusobacterium nucleatum Bacil G-; medii anaerobe LPZ, excreta ac butyric Synergism cu Porphyromonas gg Structure adezinice Rol cheie= bacteria de legatura intre bact compatibile cu sanatatea bucala si cele patogene

Prevotella intermedia PLZ cu rol antifagocitar Secreta enzyme litice Fermenteaza carbohidrati cu formare de ac acetic si succinic

Campilobacter rectus Bacterii G-, anaerobioza In placa subgg in parodontopatii cu distrctie tisulara avansataMicromonas microsEubacterium nodatumCapnocytophagaEikenella corrodens