Apical Microleakage Evaluation in Monoblock and Conventional Sealers
DOI:
https://doi.org/10.69559/issn.2233-1794.2025.14.1.2Keywords:
apical microleakage, monoblock, ActiV GP, EndoREZ, RealSeal SE, AH PlusAbstract
Objectives: This in vitro study compared apical microleakage of monoblock obturation systems (EndoREZ/Ultradent, RealSeal SE/SybronEndo, and ActiV GP/Brasseler) and the AH Plus sealer with gutta-percha using a dye penetration model.
Materials and methods: One hundred and forty single-rooted teeth were instrumented with the Mtwo® rotary system (VDW GmbH, Germany). The samples were divided into four experimental groups (EndoREZ, RealSeal SE, ActiV GP, and AH Plus; n=30 each) and two control groups (positive and negative; n=10 each). After immersion in Indian ink for one week, all samples were processed using the clearing technique. Apical dye penetration was measured with a stereomicroscope at x10.
Results: ActiV GP demonstrated the highest apical microleakage value, showing a statistically significant difference compared to the other experimental groups (p < 0.05). EndoREZ also showed significantly more leakage than the AH Plus/gutta-percha group (p < 0.0005). No other statistically significant differences were found among the remaining experimental groups.
Conclusion: AH Plus/gutta-percha group demonstrated superior sealing ability compared to EndoREZ, RealSeal SE, and ActiV GP. Despite being designed to create gap-free root canal fillings, they did not meet this objective under the conditions of the present study.
