An in Vitro Evaluation of Human Saliva Penetration in Obturated Root Canal swith Different Pairs of Root Canal Filling Materials

Statement of problem: gutta-percha presents no adhesion to the tooth structureand sealers. ideally, it should be replaced by a material that offers better sealing inthe entire length of the root canal.purpose: the aim of this study was to compare the coronal microleakage of aroot canal filled with different pairs of gutta-percha (gp), resilon, epiphany andah26.materials and method: for this study, 130 mandibular premolars were chosen.after decoronation and preparation of the root canals of the teeth, they weredivided into four experimental groups with 30 teeth each and 2 control groups.group one was obturated with gp and ah26 sealer, group two with gp andepiphany sealer, group three with resilon tips and epiphany sealer, and groupfour with resilon tips and ah26 sealer. all the groups were obturated, using coldlateral condensation. micro-leakage was tested using a two-chamber bacterialmethod. the data were subjected to statistical analysis, using a kaplan-meier test.results: the bacterial microleakage test showed no significant differencebetween groups ( p =0.1718).conclusion: it is concluded that, in vitro, the epiphany obturation system is asgood as gutta-percha sealed with ah26 when compared over 90 days of salivastorage.