<![CDATA[Comprehensive knowledge of the anatomy of the root canal system is of paramount importance in successfulendodontic treatment. It has been stated that a single tapering canal with a single apical foramen is anexception rather than a rule. Hence, awareness of unusual morphologies in the canal system is criticalfor favourable outcome of treatment. Efficacious biomechanical preparation and obturation depends uponthe timely identification of the root canal system. An important variation of the root canal system is theC shaped canal configuration. It presents with a fine fragile fins or webs joining the root canals causinginadequate debridement of the root canal system compromising the prognosis of treatment. This case seriespresents successful diagnosis, accurate radiographic visualisation of microanatomy using contrast media andmanagement of four cases of C?shaped mandibular second molars with different morphological variations.]]>
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