A Comparative Evaluation of Sealing Ability of Three Root-end Filling Materials at Different Time Intervals Using Novel Fluid Filtration Model: An In Vitro Study

Background: Microleakage is one of the major causes of endodontic treatment failure. Many microleakage testing techniques have been introduced through the years, but there has been no agreement as to which technique gives the most accurate results. The objective of this research was to assess the accuracy of fluid filtration when analyzing the apical sealing capability of the aggregate of mineral trioxide, Biodentine, and total putty. Materials and methods: A sample of 40 human central incisors was collected. The samples were decoronated at cementoenamel junction followed by preparing the canal up to size 80. Using the lateral compaction method, the obturation was done with AH plus sealer. The apical 3 mm root was resected after which ultrasonic retro tips have been utilized to make the retrograde preparation. Apical microleakage evaluation for each of the specimens was performed utilizing the fluid filtration method at specific time intervals, i.e., immediate, 1 week, 1 month, 3 months, and 6 months.