HamidReza Nourbakhsh

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INTRODUCTION Removal of root filling materials is one of the key steps in success of root canal retreatment. The purpose of this study was to evaluate the efficacy of H-File and ProTaper with or without chloroform in the removal of gutta-percha during retreatment of mandibular premolars. MATERIALS AND METHODS Sixty mandibular premolars with one canal, and(More)
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