IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-5-35282 Original Research Paper Comparative Evaluation of Injectable-Platelet rich Fibrin and Hyaluronic Acid injections in the treatment of Gingival Black Triangles. Ashima Trivedi Dr. Dr. K.T. Chandrashekar Dr. Dr. Chirag S Jaiswal Dr. May 2021 10 5 01 02