IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-2-33425 Original Research Paper Clinical and Histological evaluation of novel application of Tetracycline incorporated Platelet Rich Fibrin membrane as a gingival dressing in the treatment of gingival pigmentation- A split mouth study Prerna Dr. Chopra Rahul Dr. Sethi Aashka Dr. February 2021 10 2 01 02