[Comparative evaluation of various materials used for hermetic sealing of the root channel opening after obturation]

The quality of hermetic sealing of the opening of an obturated root channel with various sealing materials (Bezline and Russian material Foscin and Belokor) was studied. Root channels were obturated using Endomethason, Forfenan, and gutta-percha pins with hermetic AN-PLUS. A total of 187 teeth of different groups were filled in patients aged 17-85 years. The quality of hermetic sealing of an obturated root channel was evaluated by x-ray examination and electrometrically directly after filling (in 10 min) and in remote periods (after 6, 12, and 24 months). The best results were attained with Bezline and gutta-percha. A combination of Bezline and Endomethason yielded satisfactory results.