A mandibular first molar with five canals: report of case

Beatty, Richard G.; Interian, Carlos M.

doi:10.14219/jada.archive.1985.0208

Cited by 31 publications

(24 citation statements)

References 9 publications

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“…[5][6][7][8][9][10][11][12][15][16][17][18][19][20][21] The detection of additional canals requires thorough knowledge of root canal morphology and its frequent variations. Careful examination of the pulpal floor, selective troughing, and better visualization through a dental operating microscope are essential for the detection of additional canals in a mandibular first molar.…”

Section: Discussionmentioning

confidence: 99%

“…3,4 The mesial root of mandibular molars often shows an additional canal in the form of MM canal. [5][6][7][8][9][10][11][12] Clinical studies have investigated the incidence of MM canals in mandibular molars. Before the introduction of cone beam computed tomography (CBCT), the incidence of MM canal ranged between 1 and 15%, 5,10,13 whereas a recent study 7 has reported a much higher incidence of 46.2% in mandibular first and second molars.…”

Section: Introductionmentioning

confidence: 99%

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Middle Mesial and Middle Distal Canals in Mandibular First Molar

Jabali

2018

The Journal of Contemporary Dental Practice

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Background: Root canal anatomy is a complex entity. The main objective of root canal treatment is to get rid of the infection and have a good apical and coronal seal with an appropriate filling. Inability to achieve thorough cleaning and shaping followed by three-dimensional obturation of the root canal system usually causes root canal treatment failure. For this reason, clinicians should be aware of these anatomical variations to achieve successful treatment. Aim:The aim of this article is to report on the successful treatment and follow-up of mandibular first molar with additional middle mesial (MM) and middle distal (MD) canals.Case report: A 29-year-old white male patient reported with a complaint of pain in relation with tooth #19. On clinical examination, diagnosis of symptomatic irreversible pulpitis with symptomatic apical periodontitis and condensing osteitis was made and nonsurgical root canal treatment was planned. Initially, two mesial and two distal canals were located, and the patient was planned for the obturation in the second visit. The complaint of mild persistent symptoms gave a possibility of additional canals. Under the dental operating microscope and selective troughing on the floor of the pulp chamber with ultrasonic tips, additional canals were located as MM and MD canals. Conclusion:Leaving some area of the root canal system untreated is found to be one of the main reasons for root canal treatment failure. Dentists should take advantage of new tools, such as dental operating microscope and ultrasonic tips to be able to locate and treat the hidden and unusual anatomy.Clinical significance: Mandibular first molar with six canals is very rare to encounter. Clinician should have a thorough knowledge of these unusual anatomy to avoid treatment failure due to incomplete disinfection of the root canal system.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Middle Mesial and Middle Distal Canals in Mandibular First Molar

Jabali

2018

The Journal of Contemporary Dental Practice

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“…Majority of the permanent mandibular first molars typically present with 2 well-defined roots, a mesial root with two canals and a distal root with a wide oval canal or 2 round canals [3]. Apart from these presentations, wide variations of root and canal configuration of the mandibular first molars have been reported in the literature [5–13]. …”

Section: Discussionmentioning

confidence: 99%

“…Variations in the form, configuration, and number of root canals in mandibular molars have been discussed extensively in endodontic literature [3, 4]. These include mandibular first molar with five, six, and seven root canals [5–7], middle mesial canal [8], middle distal canal [9], four canals in mesial root [10], four canals in distal root [11], radix entomolaris [12], and “C-” shaped canal [13]. These reports predominantly include cases with more number of canals than normal.…”

Section: Introductionmentioning

confidence: 99%

Mandibular First Molar with a Single Root and Single Canal

Sooriaprakas

Ballal

Velmurugan

2014

Case Reports in Dentistry

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“…[3] Additionally, Stoner et al . and Beatty and Iterian[45] have reported on more obscure cases in which a third canal was located in the distal root. Martinez and Bandaneli[6] showed two cases with six canals.…”

Section: Introductionmentioning

confidence: 99%

Endodontic management of permanent mandibular left first molar with six root canals

2012

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The endodontic treatment of a mandibular molar with aberrant canal configuration can be diagnostically and clinically challenging. This case report presents the treatment of a mandibular first molar with six root canals, of which three canals were located in the mesial root and three in distal root. Third canals were found between the two main root canals. This case presents a rare anatomic configuration and points to the importance of expecting and searching for additional canals.

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A mandibular first molar with five canals: report of case

Cited by 31 publications

References 9 publications

Middle Mesial and Middle Distal Canals in Mandibular First Molar

Middle Mesial and Middle Distal Canals in Mandibular First Molar

Mandibular First Molar with a Single Root and Single Canal

Endodontic management of permanent mandibular left first molar with six root canals

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