A comparative evaluation of sealing ability of four root end filling materials using fluid filtration method An in vitro study

Abstract

Aim of the Study: The aim of this study was to compare and evaluate the sealing ability of four root end filling materialsmineral trioxide aggregate (MTA)-Plus, Biodentine, MTA (MTA Angelus) and glass ionomer cement(GIC) using fluid filtration method. Materials and Methods: Forty-four extracted, human single-rooted teeth were collected. The crown of each tooth wasdecoronated 2 mm above the cementoenamel junction. Canals were negotiated, instrumented, obturatedusing lateral compaction method. The access cavities were sealed with Cavit. Root end resection andapical root end cavity preparations of 4 mm were made in each specimen. The selected roots were thenrandomly divided into four groups ( n = 11) and restored as follows. Group 1 – GIC, Group 2 – MTA(MTA Angelus), Group 3 – Biodentine, and Group 4 – MTA Plus. The apical microleakage of eachspecimen was assessed using fluid filtration method at 72 h, 1 month and 3 months. Microleakage ineach specimen was recorded in mm (millimeter) and converted to μl/min/cm H O. Results: MTA Angelus showed least microleakage followed by Biodentine and MTA Plus. Least sealing abilitywas seen with GIC. There was statistically significant difference between all the materials at varioustime intervals. Conclusion: MTA Angelus showed superior sealing ability as a retrograde filling material followed by Biodentineand MTA Plus.