Endodontic Management of a Mandibular First Molar with Four Canals in a Distal Root by Using Cone-Beam Computed Tomography: a Case Report

Background: Aberrations in the root canal anatomy are clinically challenging for clinicians. Mandibular first molars usually have 2 roots and 3 or 4 canals, but various combinations may exist. A distal root with three canals is rare and its incidence in literature is about 0.2 - 3%. As a diagnostic...

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Main Authors: Hani Baziar, Farzaneh Daneshvar, Abbas Mohammadi, Hamid Jafarzadeh
Format: Article
Language:English
Published: Lithuanian University of Health Sciences, Faculty of Odontology 2014-04-01
Series:eJournal of Oral Maxillofacial Research
Subjects:
Online Access:http://www.ejomr.org/JOMR/archives/2014/1/e5/v5n1e5ht.htm
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author Hani Baziar
Farzaneh Daneshvar
Abbas Mohammadi
Hamid Jafarzadeh
author_facet Hani Baziar
Farzaneh Daneshvar
Abbas Mohammadi
Hamid Jafarzadeh
author_sort Hani Baziar
collection DOAJ
description Background: Aberrations in the root canal anatomy are clinically challenging for clinicians. Mandibular first molars usually have 2 roots and 3 or 4 canals, but various combinations may exist. A distal root with three canals is rare and its incidence in literature is about 0.2 - 3%. As a diagnostic tool, cone-beam computed tomography (CBCT) may be a better choice for diagnosis of extra roots or canals comparing to conventional radiography. Methods: An endodontic management of a mandibular first molar with six canals was performed. CBCT was used to confirm the diagnosis and to understand the morphology of the canals. Results: Evaluation of the axial and coronal slices of CBCT images confirmed the presence of 2 roots and 6 canals. The distal root had four distinct root canal orifices with two apical foramens, being described as type XIV canal configuration. Conclusions: Dentists should be aware of unexpected canal morphology when performing endodontic treatment. The present case demonstrated the use of CBCT in diagnosis and negotiation of extra canals in a mandibular first molar.
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spelling doaj-art-a84c8c40d7ba4094b9f55e3bff6a3d5a2025-08-02T16:07:31ZengLithuanian University of Health Sciences, Faculty of OdontologyeJournal of Oral Maxillofacial Research2029-283X2014-04-0151e510.5037/jomr.2014.5105Endodontic Management of a Mandibular First Molar with Four Canals in a Distal Root by Using Cone-Beam Computed Tomography: a Case ReportHani BaziarFarzaneh DaneshvarAbbas MohammadiHamid JafarzadehBackground: Aberrations in the root canal anatomy are clinically challenging for clinicians. Mandibular first molars usually have 2 roots and 3 or 4 canals, but various combinations may exist. A distal root with three canals is rare and its incidence in literature is about 0.2 - 3%. As a diagnostic tool, cone-beam computed tomography (CBCT) may be a better choice for diagnosis of extra roots or canals comparing to conventional radiography. Methods: An endodontic management of a mandibular first molar with six canals was performed. CBCT was used to confirm the diagnosis and to understand the morphology of the canals. Results: Evaluation of the axial and coronal slices of CBCT images confirmed the presence of 2 roots and 6 canals. The distal root had four distinct root canal orifices with two apical foramens, being described as type XIV canal configuration. Conclusions: Dentists should be aware of unexpected canal morphology when performing endodontic treatment. The present case demonstrated the use of CBCT in diagnosis and negotiation of extra canals in a mandibular first molar.http://www.ejomr.org/JOMR/archives/2014/1/e5/v5n1e5ht.htmanatomycone-beam computed tomographymolartooth roottooth canal
spellingShingle Hani Baziar
Farzaneh Daneshvar
Abbas Mohammadi
Hamid Jafarzadeh
Endodontic Management of a Mandibular First Molar with Four Canals in a Distal Root by Using Cone-Beam Computed Tomography: a Case Report
eJournal of Oral Maxillofacial Research
anatomy
cone-beam computed tomography
molar
tooth root
tooth canal
title Endodontic Management of a Mandibular First Molar with Four Canals in a Distal Root by Using Cone-Beam Computed Tomography: a Case Report
title_full Endodontic Management of a Mandibular First Molar with Four Canals in a Distal Root by Using Cone-Beam Computed Tomography: a Case Report
title_fullStr Endodontic Management of a Mandibular First Molar with Four Canals in a Distal Root by Using Cone-Beam Computed Tomography: a Case Report
title_full_unstemmed Endodontic Management of a Mandibular First Molar with Four Canals in a Distal Root by Using Cone-Beam Computed Tomography: a Case Report
title_short Endodontic Management of a Mandibular First Molar with Four Canals in a Distal Root by Using Cone-Beam Computed Tomography: a Case Report
title_sort endodontic management of a mandibular first molar with four canals in a distal root by using cone beam computed tomography a case report
topic anatomy
cone-beam computed tomography
molar
tooth root
tooth canal
url http://www.ejomr.org/JOMR/archives/2014/1/e5/v5n1e5ht.htm
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