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fa A three-rooted mandibular second premolar: a case report اندودانتیکس Endodontics پژوهشي Research Presence of extra roots and canals should be considered before initiation of root canal treatment for the success of endodontic treatment. A mandibular second premolar with three separate roots is very rare and its prevalence has been reported to be around 0.1%. This case report explains non-surgical endodontic treatment of a mandibular second premolar with three separate roots and three separate mesiobuccal, midbuccal, and lingual canal orifices. Close attention to anatomic variations, thorough radiographic examinations, thorough evaluation of the pulp chamber floor, and use of magnifying and optical devices have been recommended for the success of endodontic treatment of mandibular second premolars with complicated root canal system anatomy.<hr>Source: Journal of Dental Research, Dental Clinics, Dental Prospects <a href="http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/909" target="_blank">Full Text</a> Dental pulp cavity abnormality, bicuspids, three-rooted premolars 0 0 http://idai.ir/browse.php?a_code=A-10-32-3291&slc_lang=fa&sid=1 Zahra Fathi 100319475328460015155 100319475328460015155 No Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran Saeed Rahimi rahimidarehchi@yahoo.com 100319475328460015156 100319475328460015156 Yes Department of Endodontics, Dental and Periodontal Research Center, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran Reza Tavakoli 100319475328460015157 100319475328460015157 No Department of Oral Medicine, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran Mahsa Amini 100319475328460015158 100319475328460015158 No Department of Oral Medicine, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran