Cone-beam computed tomography evaluation of shaping ability of kedo-S square and fanta AF™ baby rotary files compared to manual K-files in root canal preparation of primary anterior teeth.

The present study findings partially rejected the null hypothesis as there was a highly significant statistical difference regards the removed dentin amount on both mesial & distal sides between the three groups at the cervical & apical thirds, whereas a non-significant difference was observed at the middle third (null hypothesis was accepted).

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