A biometric study of C‐shaped root canal systems in mandibular second molars using cone‐beam computed tomography

Seo, Deog-Gyu; Gu, Yu; Yi, Young-Ah; Lee, S.-J.; Jeong, Jaemin; Lee, Y.; Chang, Seok Woo; Lee, J.-K.; Park, W.; Kim, K.-D.; Kum, Kee‐Yeon

doi:10.1111/j.1365-2591.2012.02037.x

Cited by 40 publications

(51 citation statements)

References 34 publications

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“…13,14,18 The Chinese population also presented high prevalence of C-shaped canals, as reported by Yang et al, 12 Zheng et al 20 and Zhang et al 5 (32%, 39% and 29%, respectively). C-shaped root and canal configurations were seldom found in Caucasian populations: Cooke and Cox, 1 Weine 7 and Cimilli et al 8 reported a prevalence of 2.7%, 7.6% and 8.1% of C-shaped canals, respectively.…”

Section: Discussionsupporting

confidence: 51%

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Prevalence of C-shaped root canal in a Brazilian subpopulation: a cone-beam computed tomography analysis

et al. 2014

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Prevalence of C-shaped root canal in a Brazilian subpopulation: a cone-beam computed tomography analysis Abstract: The aim of this study was to use cone-beam computed tomography (CBCT) images to evaluate the prevalence and configurations of Cshaped canals in permanent mandibular second molars among members of a Brazilian subpopulation. CBCT exams of 214 patients (406 teeth) were evaluated for: presence of C-shaped root canals, number of canals and direction of the root grooves (buccal or lingual). Of the 214 CBCT images examined, 192 showed intact bilateral molars, which were used to analyze the distribution of unilateral and bilateral occurrences of Cshaped canals. The prevalence of these canals was correlated with gender and age, and the number of canals was correlated with the direction of the root grooves using the chi-squared test (α = 0.05). The prevalence of C-shaped canals was 15.3%. This prevalence did not differ with gender or age. Most of the C-shaped molars had three (43.5%) or two (37.1%) canals; 69.4% of the C-shaped canals were grooved in the buccal direction; 68.3% of the C-shaped cases were unilateral. In conclusion, there was a significant prevalence of C-shaped canals in the mandibular second molars of the population studied; the C-shaped canal system varied in configuration, with a higher prevalence of three and two canals and unilateral occurrence; CBCT is a useful tool for endodontic diagnosis and treatment.

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Section: Discussionsupporting

confidence: 51%

“…17 CBCT makes this canal system more predictable, and is a good option clinically speaking, because it can detect Cshaped canal configurations. 5,18 Today, some studies have been using micro-CT to investigate root canal morphology. 3,19 This evaluation provides accurate data, but micro-CT cannot be used clinically yet.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of C-shaped root canal in a Brazilian subpopulation: a cone-beam computed tomography analysis

et al. 2014

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“…This canal system has the continuous isthmus connects individual root canals. 9 This morphology is most frequency seen in the mandibular 2nd molar and Asians. 10,11 Because of the complex of Cshape canal system, the comprehension of root canal anatomy is important for clinical dentists.…”

Section: Discussionmentioning

confidence: 99%

C-shaped root canal system in mandibular 2nd molars in Korean people evaluated by cone beam computed tomography

Kim¹,

Kim²,

Kim³

et al. 2016

Journal of Dental Rehabilitation and Applied Science

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Purpose:To determine the anatomical characteristic of C-shaped canal systems in Korean mandibular 2nd molars by cone beam computed tomography (CBCT). Materials and Methods: The 824 CBCT images were evaluated. These patients were taken CBCT for the diagnosis and treatment of dental implantation on 2013. The 711 mandibular 2nd molars were examined. The configuration of root canal systems were classified according to modified Melton's classifications. Results: Of the 711 mandibular 2nd molars, 21.5% had C-shaped canal systems. This prevalence did not differ with tooth position. Most of the C-shaped canals with bilateral molars were symmetrical. Of the C-shaped canal, the most common configuration Type were Melton's Type I (89%) in the orifice level and Melton's III (83.8%) in the apical level. The prevalence of C-shaped canal was higher in female (25%) than male (13.9%) (P < 0.05). Conclusion: A high prevalence of C-shaped canals were observed in Korean mandibular 2nd molars. For successful C-shaped root canal treatment, the comprehension of root canal systems was important.

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“…While these studies evaluated the two-dimensional (2D) structure of the pulp cavity, other studies evaluated the 3D configuration of the same using extracted tooth samples injected with Indian ink and made transparent using methyl salicylate [125][126][127]. Recently, the detailed structure of the pulp cavity was elucidated using μCT and CBCT images [128][129][130][131][132][133][134][135]. These studies described the morphological complexity of the pulp cavity, particularly in root canals that often have a lateral and/or additional canal.…”

Section: Morphological Study Of the Pulp Cavitymentioning

confidence: 97%

“…The root canal system has been classified based on the canal pattern, and includes lateral branches, additional branches, and/or fused canals; the most popular criteria for the classification of root canals is the Vertucci's criteria [125,126]. A C-shaped root in the mandibular second molar is frequently found in the Japanese [130,131,[136][137][138][139][140] (reviewed by Kato et al [141]), and this unique root structure exhibits a complex root canal system.…”

Section: Morphological Study Of the Pulp Cavitymentioning

confidence: 99%

Analytical methods and interpretation of variation in tooth morphology

Kondo

Manabe

2016

Journal of Oral Biosciences

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A biometric study of C‐shaped root canal systems in mandibular second molars using cone‐beam computed tomography

Cited by 40 publications

References 34 publications

Prevalence of C-shaped root canal in a Brazilian subpopulation: a cone-beam computed tomography analysis

Prevalence of C-shaped root canal in a Brazilian subpopulation: a cone-beam computed tomography analysis

C-shaped root canal system in mandibular 2nd molars in Korean people evaluated by cone beam computed tomography

Analytical methods and interpretation of variation in tooth morphology

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