ABSTRACT
Introduction: The aim of this study to evaluate the effect of addition of chitosan nanoparticles to (Guttaflowbioseal, MTA fillapex and Adseal) on film thickness. Methods: Digital calliper was used to measure film thickness, The samples were classified into six groups according to type of sealer; group1: Guttaflowbioseal, group2: Guttaflowbioseal + Chitosan NP, group3: MTAfillapex, group4: MTAfillapex + Chitosan NP, group5: Adseal, group6: Adseal + Chitosan NP. Film thickness teste was evaluated before and after addition of chitosan nanoparticles. The results were compared and statistically analyzed. Results showed that For Adseal groups, there was no statistically significant difference (p=0.426), However for Guttaflowbioseal groups and MTAfillapex groups there were statistically significant difference(p=0.032), Without nanoparticles Guttaflowbioseal had highest film thickness followed by Adseal while MTAfillapex showed least value, With nanoparticles MTAfillapex had highest followed by Guttaflowbioseal while Adseal showed least value. Conclusion: The addition of Chitosan nanoparticles increased film thickness of MTAfillapex and Adseal, but decreased film thickness of Guttaflowbioseal.