IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-8-36135 Original Research Paper SHORT TERM EFFECTS OF PHOTODYNAMIC THERAPY ON CLINICAL, MICROBIAL AND BIOCHEMICAL PARAMETERS IN PATIENTS WITH CHRONIC PERIODONTITIS Akila Lingesan Dr. Dr. Arularasi Aberna R Dr. Dr. John William Felix A Dr. August 2021 10 8 01 02