Mandibular second molar root canal morphology and variants in a Korean subpopulation

Kim, S. Y.; Kim, B. S.; Kim, Y.

doi:10.1111/iej.12437

Cited by 71 publications

(131 citation statements)

References 28 publications

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“…However, this was a higher prevalence when compared to individuals from Korea (Kim et al 2013) and China (Zhang et al 2011a), where three roots were present in 25.85% and 29% of cases, respectively. The mandibular second molar had a single root in 14.2% of the cases, which is lower ratio when compared to data from Korea (41%; Kim et al 2016) or China (22%; Zhang et al 2011a).…”

Section: Discussioncontrasting

confidence: 60%

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Root and root canal morphology of the permanent dentition in a Caucasian population: a cone‐beam computed tomography study

Marques²,

et al. 2017

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Section: Discussioncontrasting

confidence: 60%

“…The mandibular second molar had a single root in 14.2% of the cases, which is lower ratio when compared to data from Korea (41%; Kim et al . ) or China (22%; Zhang et al . ).…”

Section: Discussionmentioning

confidence: 99%

Root and root canal morphology of the permanent dentition in a Caucasian population: a cone‐beam computed tomography study

Marques²,

et al. 2017

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“…As with other anatomical variations including C-shaped mandibular second molars 16 , it has been shown that the incidence of a third root in the mandibular first molar is closely related to ethnicity 8 . This variability has higher prevalence in specific populations, e.g.…”

Section: Introductionmentioning

confidence: 88%

Prevalence and morphometric analysis of three-rooted mandibular first molars in a Brazilian subpopulation

et al. 2016

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The knowledge of the internal anatomy of three-rooted mandibular molars may help clinicians to diagnose and plan the root canal treatment in order to provide adequate therapy when this variation is present.Objectives:To determine the prevalence of three-rooted mandibular molars in a Brazilian population using cone beam computed tomography (CBCT) and to analyze the anatomy of mandibular first molars with three roots through micro-CT.Material and Methods:CBCT images of 116 patients were reviewed to determine the prevalence of three-rooted first mandibular molars in a Brazilian subpopulation. Furthermore, with the use of micro-CT, 55 extracted three-rooted mandibular first molars were scanned and reconstructed to assess root length, distance between canal orifices, apical diameter, Vertucci's classification, presence of apical delta, number of foramina and furcations, lateral and accessory canals. The distance between the orifice on the pulp chamber floor and the beginning of the curvature and the angle of canal curvature were analyzed in the distolingual root. Data were compared using the Kruskal-Wallis test (α=0.05).Results:The prevalence of three-rooted mandibular first molars was of 2.58%. Mesial roots showed complex distribution of the root canal system in comparison to the distal roots. The median of major diameters of mesiobuccal, mesiolingual and single mesial canals were: 0.34, 0.41 and 0.60 mm, respectively. The higher values of major diameters were found in the distobuccal canals (0.56 mm) and the lower diameters in the distolingual canals (0.29 mm). The lowest orifice distance was found between the mesial canals (MB-ML) and the highest distance between the distal root canals (DB-DL). Almost all distal roots had one root canal and one apical foramen with few accessory canals.Conclusions:Distolingual root generally has short length, severe curvature and a single root canal with low apical diameter.

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“…Both studies used CBCT technology as a source of data. This technology has been widely used by several researchers to study root canal system morphology (15)(16)(17)(18)(19). Keeping in mind the in vivo characteristics of the methodology, it might be regarded as the most adequate imaging technique to study the prevalence of anatomic characteristics.…”

Section: Clinical Researchmentioning

confidence: 99%

Differences on the Root and Root Canal Morphologies between Asian and White Ethnic Groups Analyzed by Cone-beam Computed Tomography

Martins

Marques

et al. 2018

Journal of Endodontics

121

138

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Mandibular second molar root canal morphology and variants in a Korean subpopulation

Abstract: A high prevalence of C-shaped canals and a low incidence of three-rooted molars were observed in the mandibular second molars of the Korean subpopulation studied.

Cited by 71 publications

References 28 publications

Root and root canal morphology of the permanent dentition in a Caucasian population: a cone‐beam computed tomography study

Root and root canal morphology of the permanent dentition in a Caucasian population: a cone‐beam computed tomography study

Prevalence and morphometric analysis of three-rooted mandibular first molars in a Brazilian subpopulation

Differences on the Root and Root Canal Morphologies between Asian and White Ethnic Groups Analyzed by Cone-beam Computed Tomography

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