engleski

Leakage of five root canal sealers

The aim of this study was to examine the apical sealing ability of five root canal sealers using a fluid transport model. A comparison of root canal sealers AH26, AH Plus, Diaket, Apexit. and Ketac- Endo were tested on 60 single-rooted teeth. The coronal part of each tooth was removed at the amelo-cemento junction, and also 3 mm of the root tip. Root canals were instrumented using the 'step-back' technique with Gates Glidden drills and irrigated with 2.5% NaOCl, The specimens were divided into five groups of 10 samples each and filled with test materials and gutta-percha points by the cold lateral condensation technique. Ten teeth were used as a control group, out of which five served as negative and five as positive controls. The leakage was measured by the movement of an air bubble in a capillary glass tube connected to the experimental root section. The differences in leakage amongst Ketac-Endo (0.318 mu L: SD 0.084), AH26 (0.319 mu L ; SD 0.075), AH Plus (0.330L ; SD 0.085) Apexit (0.360 mu L ; SD 0.127) and Diaket (0.387 mu L ; SD 0.140) were not statistically significant (P > 0.05). Under the conditions of this study, all five sealers produced a satisfactory seal

glass-ionomer cement ; different thicknesses ; sealing properties ; fluid transport ; apical leakage ; fillings ; penetration. dentin

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