Research Information System
21st European Society of Endodontics (ESE) Biennial Congress, Helsinki, Finland, 6 - 09 September 2023, pp.66
Aim: The aim of this study was to evaluate the solubility and water sorption of two premixed calcium silicate-based sealers (EndoSeal MTA; Maruchi, Wonju, Korea, and NeoSealer Flo; Avalon Nusmile, USA) in comparison with an epoxy resin-based sealer (AH Plus; Dentsply DeTrey, Konstanz, Germany).
Methods: The materials were prepared according to the manufacturer's instructions, and then placed into 8 x 1.6 mm molds made of polytetrafluoroethylene. After the setting time, the samples (n=5 for each material) were removed from the molds, weighed, and then immersed in distilled water. Solubility and water sorption tests were conducted after 24 hours, 3 days, 7 days, and 14 days. The data were analyzed statistically using one-way analysis of variance and post-hoc Tukey test (p<0.0001).
Results: Results showed that EndoSeal MTA and NeoSealer Flo had significantly higher solubility and water sorption compared to AH Plus at all time points (p<0.0001). Additionally, EndoSeal MTA exhibited higher water sorption values than NeoSealer Flo at 3, 7, and 14 days (p<0.0001), although the two calcium silicate-based sealers had similar solubility values at all time points (p=0.924, p=0.354, p=0.309, and p=0.409 for 24 hours, 3 days, 7 days, and 14 days, respectively). Moreover, no significant differences were observed in water sorption (p=0.995) and solubility (p=0.999) over time for all three root canal sealers.
Key learning points: The two premixed calcium silicate-based sealers, EndoSeal MTA and NeoSealer Flo, demonstrated significantly higher levels of solubility and water sorption compared to AH Plus, an epoxy resin-based sealer. It is worth noting, however, that the solubility of AH Plus was found to be in compliance with the ISO 6876:2012 standard, whereas the calcium silicate-based sealers were not. Clinicians should consider the solubility and water sorption properties of root canal sealers when selecting the most suitable materials for clinical use.