For achieving high levels of success in endodontic therapy a thorough knowledge of internal dental anatomy is fundamental. Lack of understanding of anatomic variations has been pointed as one of the main causes of endodontic therapy failure. Clinicians need to be aware of the unusual numbers of roots and root canal, and it is a challenge to treat teeth with extra roots and/or canals. This case report presents a rare case of successful nonsurgical endodontic management of maxillay first premolar with three roots having two canals in buccal root and one in palatal root canal.
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