Complex affiliation: Green complex. Because of its extraordinary pathogenicity, it is presented separately in the result report as an “Aa-complex”.
Pathogenicity: very highly pathogenic
Pathogenicity factors: produces potent virulence factors such as phosphatases, leukotoxin and immunosuppressive factor
Properties: facultatively anaerobic; exogenous transmission (particularly parent-to-child and between partners); tissue invasive (hence risk of recurrence); resistant to metronidazole and clindamycin
Occurrence: high correlation with severe clinical forms; considered as the predominant pathogen in juvenile and aggressive forms of periodontitis
Therapy: SRP incl. adjunctive antibiotic therapy, because SRP is usually not sufficient on account of the invasiveness.
First-line antibiotic: Amoxicillin