DR. PRAGYA TRIPATHI; DR. DEEPANSHU PANWAR; DR. PREETI UPADHYAY; DR. SIDDHANTH SINGH; DR. TULLIKA ROY; DR. MANPREET KAUR. TO EVALUATE AND COMPARE THE EFFECTIVENESS OF ADVANCED PLATELET-RICH FIBRIN (A-PRF) COMBINED WITH 1% METRONIDAZOLE GEL VERSUS A-PRF ALONE IN THE TREATMENT OF CHRONIC PERIODONTITIS OVER A 12-WEEK PERIOD. The Bioscan 2025, 20, 37-50.