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

Overview

Journal J Oral Maxillofac Res

Date 2014 May 13

PMID 24817995

Citations 11

Authors

Hani Baziar

Farzaneh Daneshvar

Abbas Mohammadi

Hamid Jafarzadeh

Affiliations

Soon will be listed here.

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.

Citing Articles

Endodontic treatment of the mandibular first molar with six root canals: A case report and literature review.

Liu M, Zhang Y, Sun P, Qiao Y, Pan K Exp Ther Med. 2022; 24(6):760.

PMID: 36561975 PMC: 9748712. DOI: 10.3892/etm.2022.11696.

Endodontic Management of a Mandibular First Molar with Unusual Canal Morphology.

Hashem A, Ahmed H Eur Endod J. 2021; 2(1):1-4.

PMID: 33403327 PMC: 7757944. DOI: 10.5152/eej.2017.17042.

Morphology and prevalence of middle canals in the mandibular molars: A systematic review.

Bansal R, Hegde S, Astekar M J Oral Maxillofac Pathol. 2018; 22(2):216-226.

PMID: 30158775 PMC: 6097385. DOI: 10.4103/jomfp.JOMFP_194_17.

Rare case of a mandibular first molar with seven canals confirmed by cone beam computed tomography and its endodontic management.

Vineet A, Sonali K, Dhwani B Int J Health Sci (Qassim). 2018; 12(2):91-93.

PMID: 29599701 PMC: 5870329.

Root Canal Anatomy and Morphology of Mandibular First Molars in a Selected Iranian Population: An Study.

Mohammadzadeh Akhlaghi N, Khalilak Z, Vatanpour M, Mohammadi S, Pirmoradi S, Fazlyab M Iran Endod J. 2017; 12(1):87-91.

PMID: 28179932 PMC: 5282387. DOI: 10.22037/iej.2017.18.

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