A 1-YEAR FOLLOW-UP-STUDY ON LEAKAGE OF 4 ROOT-CANAL SEALERS AT DIFFERENT THICKNESSES

Determination of leakage using a fluid transport model allows measurem ent of leakage in a longitudinal manner, Leakage of four sealers at th ree different thicknesses in 225 bovine root sections, after storage i n water for 1 year, was measured again using the same methodology, The change in seal over time for each sealer was observed. The results af ter the second measurement showed that every sealer produced the best seal when the sealer layer was the thinnest, AH26, Ketac-Endo and Tubl i-Seal showed a reduction in leakage over time and gave significantly less leakage than Sealapex (P<0.005), Sealapex showed significantly mo re leakage after storing in water for 1 year (P<0.005), Therefore, the long-lasting seal of sealer may, among other influencing factors, dep end on the layer thickness and the solubility of the material.