Pathogenesis of Periodontitis: An Overview

Periodontitis is the severe inflammation of the tissues surrounding and supporting the tooth like gingiva, alveolar bone, and periodontal ligament. Many studies have tried to explain the pathogenesis of periodontitis focusing in many parameters such as the roles of the host pathways, the molecular and genetic factors, the bacterial biofilm mass, and the patient’s susceptibility.

The main objective of this article is to review the most relevant and comprehensive models of the pathophysiology of periodontitis and emphasize factors including the presence of systemic conditions and genetic that play a crucial role in the pathogenesis of chronic and aggressive periodontitis.