Background:The aim of this study was to evaluate three single rotary NiTi systems regarding their cleaning ability and the amount apically extruded debris. Methodology: A total of forty five extracted permanent mature lower anteriors were divided then instrumented in three groups (n = 15): Fanta AF F One file, OneShape file and OneCurve file. 2.5% Sodium hypochlorite was used as an irrigant. preweighets and postweights were recorded for apical extrusion. Teeth were longitudinally splited into two halves. Images were taken then analysed for debris percentage using J image software. Intergroup comparisons and intragroup comparisons were done using one-way ANOVA followed by Tukey's post hoc test. Results:The apical extrusion results showed that the highest mean value of apically extruded debris was found in Fanta AF F One group followed by OneCurve group, while the least value was found in OneShape group. Regarding the cleaning ability, none of the tested instrument showed complete cleaning of the canal walls. The three file systems showed better cleaning ability in the coronal and the middle while a less cleaning ability was in the apical thirds of the root canals. Fanta AF F One file showed better cleaning ability compared to Oneshape and OneCurve file systems. Conclusions: Under the conditions of this study, Fanta AF F One file produced more debris than the One Shape and OneCurve file systems. While it showed a better cleaning ability compared to the other file systems.