Objectives: to evaluate the effect of two irrigants, Nano silver and QMIX 2IN1 on adaptability and sealability of gutta-core.
Methods: A total number of 120 extracted human permanent straight single rooted premolars with closed apex were collected. Root canals were cleaned and shaped using crown-down technique to a master apical file size 40. Samples were divided into three groups (n=40) according to the irrigating solution: G1, 5.25% NaOCl; G2, Nanosilver; G3, QMIX 2IN1. Each group was subdivided into two subgroups according to the obturation materials. Subgroup A, Gutta-Core and
subgroup B, Thermafil. Stereomicroscope and fluid filtration methods were used to evaluate adaptability and sealability of Gutta-Core and Thermafil. Data was statistically analyzed using one way ANOVA.
Results: Regarding the obturating materials, Gutta-Core showed statistically significantly higher adaptability mean values than Thermafil. Apical level of the root canal showed the highest leakage than middle and coronal levels.
Conclusions: QMIX 2IN1 and Nanosilver irrigants enhances the adaptability of obturating material. Gutta-core is a promising obturating material. Adaptability is a problem with the apical third of root canal.