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Endodontic Management of a Mandibular First Molar with Four Canals in a Distal Root by Using Cone-Beam Computed Tomography: a Case Report J Oral Maxillofac Res 2014 (Jan-Mar);5(1):e5 doi:10.5037/jomr.2014.5105 |
Endodontic Management of a Mandibular First Molar with Four Canals in a Distal Root by Using Cone-Beam Computed Tomography: a Case Report
1Department of Endodontics, Faculty of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran.
2Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran.
3Dental Research Center, Department of Endodontics, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
Corresponding author:
Faculty of Dentistry and Dental Research Center
P.O. Box: 91735-984, Vakilabad Blvd, Mashhad
Iran
Phone: +98-511-8829501
Fax: +98-511-8829500
E-mail: hamid_j365@yahoo.com; JafarzadehBH@mums.ac.ir
ABSTRACT
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.
J Oral Maxillofac Res 2014 (Jan-Mar);5(1):e5
doi:10.5037/jomr.2014.5105
Accepted for publication: 17 March 2014
Keywords: anatomy; cone-beam computed tomography; molar; tooth root; tooth canal.
To cite this article: Endodontic Management of a Mandibular First Molar with Four Canals in a Distal Root by Using Cone-Beam Computed Tomography: a Case Report. J Oral Maxillofac Res 2014;5(1):e5 URL: http://www.ejomr.org/JOMR/archives/2014/1/e5/v5n1e5ht.htm |
Received: 15 February 2014 | Accepted: 17 March 2014 | Published: 1 April 2014
Copyright: © The Author(s). Published by JOMR under CC BY-NC-ND 3.0 licence, 2014.