Introduction: The present study aims to compare the apical sealing ability of three different obturation techniques viz; cold lateral condensation, carrier based obturation (GuttaCore) and single cone (GuttaFlow bioseal) using a dye penetration method.
Materials and Methods: Freshly extracted mandibular premolars were collected. After biomechanical preparation, samples were divided into 3 groups (n=15) and were obturated. Each root was coated with nail paint except the apical 3mm. Samples were immersed in 2% methylene blue for 72 hours at 37˚C. All the roots were sectioned bucco-lingually. Samples were then examined under a stereomicroscope at 0.8X magnification. The linear extent of dye penetration was measured in mm from the apical end of the preparation.
Statistical analysis used: Oneway ANOVA and Post hoc Scheffe’s test (p value ≤ 0.05)
Results: Cold lateral condensation technique showed highest amount of apical microleakage followed by GuttaCore and GuttaFlow Bioseal. Statistically significant difference was found when GuttaFlow Bioseal was compared with cold lateral condensation and GuttaCore. The results were not statistically significant when cold lateral condensation and GuttaCore were compared.
Conclusions: GuttaFlow Bioseal in combination with single cone technique shows better apical sealing ability when compared to Carrier based obturation (GuttaCore) and cold lateral Condensation technique.