Vol. 5, Issue 1, Part D (2019)

Introduction: This study evaluated the flow rate of silicon-based root canal sealers (Roeko Seal, Nano Seal-S) and compared it to an epoxy resin sealer (AH-Plus).

Material and Methods: Measurement of the flow rate was conducted by the method prescribed by ISO specification 6876:2012. The sealers were mixed, and a volume of 0.05 mL was dispensed using a graduated plastic 1 mL syringe to a glass slab with the dimensions of 40x40x5mm (20 g). After 3 minutes, a second glass slab was placed with a calibrated weight of 100g making a total load mass of 120g. The sealers were left for an additional 7 minutes has passed, and a digital caliper was used to measure the diameter of the compressed sealer. The data were analyzed using ANOVA and Tukey tests (P< 0.05).

Results: The average of the mean diameters of the sealers were Roeko Seal (24.46), Nano Seal-S (20.91), and AH Plus (23.62). Statistical analysis of the finding showed that Roeko Seal and AH Plus had significantly higher flow values compared to Nano Seal-S sealer (P<0.01). The difference between Roeko Seal and AH Plus was statistically not significant (P=0.164).

Conclusion: Although tested sealers have variable flow rate values, all sealers were within the requirement of the ISO 6876:2012 specifications.