Sealing properties of different resin‐based root canal sealers

Abstract In this study, a comparison of the sealing properties of three different resin‐based sealers, AH26, Diaket, and EndoREZ with those of the root canal sealer zinc oxide–eugenol‐based U/P Root Canal Sealer was performed. Eighty extracted single‐rooted human mandibular first premolar teeth were used. The coronal part of each tooth was removed at the apical 17‐mm of roots. The root canals were prepared to a size 7 with ProFile 0.06 taper Series 29 rotary instruments in a crown‐down manner before lateral condensation of gutta‐percha with the tested sealers (n = 20). A fluid filtration method was used for quantitative evaluation of apical leakage. Statistical analysis revealed that there were no significant differences between the resin‐based sealers groups (AH26, Diaket, and EndoREZ) (p>0.05). U/P Root Canal Sealer, zinc oxide–eugenol‐based sealer, leaked significantly more than other tested groups (p<0.05). Under the limitations of this study, resin‐based root canal sealers were found more effective in sealing root canals than the zinc oxide–eugenol‐based sealer. © 2005 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2006