Evaluation of the effect of different pediatric rotary file systems used in canal shaping of primary teeth on apical debris extrusion

Objective: The aim of this study is to evaluate the apical debris extrusion after root canal preparation using different pediatric rotary file systems in mandibular second primary molars.
Materials and Methods: Forty mandibular second primary molars were used in this study. Teeth were randomly divided into 4 experimental groups for the shaping of their distal roots. G1: hand files, G2: Endoart Pedo Blue, G3: M3 Immature Blue, and G4: AF Baby rotary files were used for root canal preparation. The Myers and Montgomery model was used to measure the amount of apical debris by evaluating the pre and post weight of the Eppendorf tube. Data were analyzed using one-way analysis of variance and Tukey post-hoc tests (p < 0.05).
Results: Among all file systems, the highest apical debris extrusion was observed in the G1 (Hand file) group, and the least apical debris extrusion was observed in the G4 (AF Baby File) group. However, there was no statistically significant difference between the G2 (Endoart Blue File), G3 (M3 Immature Blue File) and G4 (AF Baby File) groups (p > 0.05).
Conclusion: All shaping techniques used in the study resulted in apical debris extrusion.