3. Results
A total of 110 mandibular premolar teeth were stereomicroscopically assessed to evaluate the apical sealing ability of three endodontic sealers using three different obturation techniques. Excellent intra-observer reliability was recorded for both examiners (Examiner 1: 0.93; Examiner 2: 0.988). Inter-observer reliability was measured as 0.992, signifying an excellent correlation between the two examiners. All specimens in the positive control demonstrated maximum levels of dye penetration whilst no dye penetration was observed in negative control samples.With regards to sealing ability, insignificant results were obtained between obturation techniques (A pairwise sealer comparison showed an insignificant difference between the sealing abilities of Sealapex and Endosequence (Multiple pairwise comparisons between all sealer–technique combination groups were evaluated to compare all obturations. Endoseal groups (groups 7, 8 and 9) showed the most significant differences when compared to other sealer–technique combinations (