Periodontitis, also known as chronic pericementitis, is related to periodontitis, chronic and periodontitis, aggressive, 1, and has symptoms including leukorrhea and purulent discharge. An important gene associated with Periodontitis is CDKN2B-AS1 (CDKN2B Antisense RNA 1), and among its related pathways/superpathways are Innate Immune System and ERK Signaling. The drugs Hyaluronic acid and Metronidazole have been mentioned in the context of this disorder. Affiliated tissues include bone and neutrophil, and related phenotypes are homeostasis/metabolism and neoplasm