Antimicrobial activity of seven root canal sealers. Results of agar diffusion and agar dilution tests.

A comparative study of the antimicrobial action of seven root canal sealers: Traitement Spad, Endométhasone, N2 Universal, Diaket-A, AH26 with silver, Tubli Seal, and Sealapex was done with 120 strains of Staphylococcus aureus. Two antimicrobial susceptibility tests were used: the agar dilution test and the agar diffusion test. The Diaket-A and Traitement Spad sealer cements showed the highest efficiency in the dilution test, whereas Diaket-A was in fourth place in the diffusion test, only better than the antimicrobial activity of the Tubli Seal and Sealapex sealers.