EVALUATION OF TWO DIFFERENT ROOT CANAL SEALER, USING DIFFERENT IRRIGATION SOLUTION ON PUSH OUT BOND STRENGHT TO DENTIN

Aim: the aim of this study was to evaluate the bond strenght of gutta-percha and different root canal sealers to root canal dentine and gutta-percha after using different irrigation solutions. method: seventy extracted superior incisor teeth and canine were used in this study. root canals were instrumented using mtwo (vdw, munich, germany) rotary system up to 60.04 niti file. teeth were randomly divided in to four groups (n=15) and constituted two control groups (n=5). both first (a) and third (c) groups, naocl and mtad were applied as the final irrigation. both second (b) and fourth (d) groups, naocl and edta were applied as final irrigation. in control groups, only naocl was used as irrigation solution. both groups a and c were filled using ah plus (dentsply detrey, konstanz, germany) and guttapercha single con technique. both groups b and d were filled using endorez (ultradent, south jordan, usa) and guttapercha with single con technique. first control group was obturated with ah plus, second control group was obturated with endorez. three-millimeter thick horizontal sections from the coronal and mid-thirds of each root were sliced for the push-out bond strength measurement. statistical analysis was calculated using one-way anova/tukey type multiple comprasion methods. results: the mean values of bond strengths were recorded for different subgroups are presented mtad-ah plus (1.13±0.18a), edta-ah plus (1.10±0.26a), naocl-ah plus (0.77±0.19c), mtad-endorez (0.99±0.20b), edta-endorez (1.02±0.21b) ve naocl-endorez (0.78±0.23c) mpa. statistically, significant difference was found between the groups. the highest bond strenght is reached after obturation with ah plus, using mtad irrigation solution. conclusion: according to study, it was concluded that using naocl and mtad as irrigation solution and obturation using ah-plus were found to be more effective.