Single Session Of Antimicrobial Photodynamic Therapy Using Indocyanine Green

Inclusion Criteria: Patients who were diagnosed with chronic periodontitis having a clinical evidence of periodontal pocket of ≥5mm, in at least 4 sites in each of the 3 quadrants. * Systemically healthy male \& female patients within the age group of 35-55 years. * No history of medications affecting the periodontium (antibiotics, immunosuppressive drugs, anti-inflammatory, anti-oxidants, antibiotic tooth paste, mouthwashes) or periodontal therapy in the past 24 weeks period leading to the study. Materials \& Methods 26 \- Minimum of 5 teeth in each quadrant. Exclusion Criteria: Medically compromised patients. * Patients who had received any antibiotic, periodontal or laser therapy during the past 24 weeks of base line examination. * Patients using antibacterial mouth rinses or medicated tooth paste during the past 24 weeks. * Patients with history of tobacco chewing, smoking and alcohol consumption. * Pregnant women \& lactating mothers.