Aim of the study: was to compare the antibacterial effect of Ceraseal (bio-ceramic sealer.) versus AD seal (Resin based sealer) and Zinc oxide and eugenol sealer against E-faecalis using agar diffusion method.
Materials and methods: Samples were classified into 3 groups according to the material used as follows Group 1 Ceraseal sealer , Group 2: AD seal and group 3; Zno & E sealer. Each group was classified into three subgroups according to the observation periods into (1day, 3days and 7 days). Each group consisted of 7 agar plates implanted with E-faecalis strain. 3 holes were created in each agar plate each hole contained one tested material. During the observation period each plate was incubated at 37°C. till evaluation.
The results showed that the Ceraseal is the only sealer exhibited an inhibitory zone at all intervals while AD seal and ZnO&E exhibited no antibacterial activity.
It has been concluded that Bioceramic sealer has higher inhibitory effect on E-faecalis than both Resin and ZnO&E sealers.