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Evaluation of the apical seal obtained with two calcium hydroxide based endodontic sealers.

Summary. In this study, a comparison of the sealing properties of two calcium hydroxide based endodontic sealers, Sealapex and CRCS with those of the root canal cement Tubli-Seal was performed. The results showed that all materials failed to produce an effective apical seal and that the degree of leakage increased with time. The differences observed among the 1-, 3- and 10-day observation periods were statistically significant for all materials (P<0.001) whereas no significant differences between materials were observed at each observation period (P<0.05).