We established a mouse model of periodontitis by oral infection with P. gingivalis.
We used epigallocatechin-3-gallate (EGCG) to down-regulate inflammatory mediators.
Serum, gingival tissue and bone were examined to assess the effect of EGCG.
Oral continuous intake of EGCG alleviates P. gingivalis-induced periodontitis.
EGCG treatment could provide a potential therapeutic to prevent periodontal disease.