Porphyromonas gingivalis in the tongue biofilm is associated with the clinical outcome in rheumatoid arthritis patients
OBJECTIVE: Several evidences suggested a link between human microbiome and Rheumatoid Arthritis (RA) development. Porphyromonas gingivalis (P. gingivalis) seems involved in RA initiation and progression, as supported by the high occurrence of periodontitis. In this case-control study, we analyzed tongue P. gingivalis presence and quantification in a large healthy and RA cohort.