Abstract
Seven root canal sealers were examined for their hardness affecting radiopacity, adhesion to root dentin, consistency and removal. The results were as follows : 1. AH26, N_2, Kri 1 and Canals were strongly radiopaque, followed by Neodyne for root canal filling. Triozinc pasta and Calvital were slightly radiolucent. 2. AH26, N_2, and Calvital showed strong adhesive properties to root dentin, followed by Neodyne for root canal filling. Triozinc pasta, Kri 1 and Canals showed weak adhesive properties to root dentin. 3. Neodyne for root canal filling, N_2, AH26 and Canals exhibited strong consistency, followed by Kri 1 and Calvital. Triozinc pasta was porous. 4. AH26 was the hardest, followed by Neodyne for root canal filling, Canals and N_2. Triozinc pasta, Calvital and Kri 1 were too soft to be tested.