EVALUATION OF DIFFERENT ROOT-END FILLING MATERIALS IN POINT OF APICAL MICRO-LEAKAGE BY THE COMPUTERIZED FLUID FILTRATION METER

Aim: the aim of this study was to test apical micro-leakage of n-butyl-2-cyanoacrylate as a root-end filling material by the computerized fluid filtration meter. material and method: seventy-nine extracted human mandibular premolar teeth with one root canal were selected. the specimens were divided into five groups of 13 teeth each and filled with the ah plus root canal sealer. after obturation, the roots were resected at 300 angle and filled with a root-end filling material. the sealing qualities of the five different root-end filling materials were measured using computerized fluid filtration method. results: the mean values of apical micro-leakage were 5.0±1.07x10^-4, 4.0±1.5x10^-4, 4.0±2.2x10^-4, 1.0±0.6x10^-4, and 4.0±1.1x10^-4 μl.cmh2o^-1.min^-1 at 120 kpa, in groups 1 to 5, respectively. the statistically significant differences were not found among the retrofilling materials (p>0.05). conclusion: this type of cyanoacrylate has been used firstly as retrograde filling material. tissue adhesive can be used as a root-end filling material in apical surgery.