Biomarkers play a crucial role in the diagnosis, prognosis, and monitoring of periodontal diseases. Periodontal diseases are inflammatory conditions that affect the supporting structures of the teeth, including the gums, periodontal ligament, and alveolar bone. Biomarkers are measurable substances that can indicate the presence, severity, and progression of a disease. In the context of periodontal diseases, biomarkers are used to provide valuable insights into the underlying inflammatory processes and help guide treatment decisions.