IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-1-32993 Original Research Paper A comparative evaluation of tooth structure loss while removal of old composite material with and without using methylene blue dye: An in-vitro study. Krupali Hadwani Dr. Dr. Anoli Hirani Dr. January 2021 10 1 01 02