Zical is a ZOE based sealer for permanent filling of dental root canals. Can tightly seal the apex of the root and the prepared root canal and can be easily removed with Gutta Percha point when refilling is necessary. Composition based on Grossman Formula is radiopaque, non staining non irritating with excellent thermal insulation. Very long working time and excellent lubricating qualities. Low Zinc oxide contents of the composition alleviate some of the cytotoxic and inflammatory effects of the tissues and addition of Iodoform acts as an anti microbial agent.