Analysis of C-shaped canal systems in mandibular second molars using surgical operating microscope and cone beam computed tomography: A clinical approach

Chhabra, Sanjay; Yadav, Seema; Talwar, Sangeeta

doi:10.4103/0972-0707.131785

Cited by 9 publications

(8 citation statements)

References 25 publications

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“…Since the first report by Cooke and Cox in 1979 [ 1 ], many investigators have evaluated the root canal anatomy of mandibular second molars. The prevalence of C-shaped canals has been reported to vary depending on the population and ethnic group [ 1 4 7 10 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ]. The mandibular second molars in Asian populations have shown a high prevalence of C-shaped canals in many studies [ 6 18 20 25 30 ].…”

Section: Introductionmentioning

confidence: 99%

C-shaped root canals of mandibular second molars in a Korean population: a CBCT analysis

et al. 2018

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ObjectivesThe purpose of this study was to investigate the C-shaped root canal anatomy of mandibular second molars in a Korean population.Materials and MethodsA total of 542 teeth were evaluated using cone-beam computed tomography (CBCT). The canal shapes were classified according to a modified version of Melton's method at the level where the pulp chamber floor became discernible.ResultsOf the 542 mandibular second molars, 215 (39.8%) had C-shaped canals, 330 (53%) had 3 canals, 17 (3.3%) had 2 canals, 12 (2.2%) had 4 canals, and 8 (1.7%) had 1 canal. The prevalence of C-shaped canals was 47.8% in females and 28.4% in males. Seventy-seven percent of the C-shaped canals showed a bilateral appearance. The prevalence of C-shaped canals showed no difference according to age or tooth position. Most teeth with a C-shaped canal system presented Melton's type II (45.6%) and type III (32.1%) configurations.ConclusionsThere was a high prevalence of C-shaped canals in the mandibular second molars of the Korean population studied. CBCT is expected to be useful for endodontic diagnosis and treatment planning of mandibular second molars.

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Section: Introductionmentioning

confidence: 99%

C-shaped root canals of mandibular second molars in a Korean population: a CBCT analysis

et al. 2018

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“…Inhabitants of Turkey had predominantly type 4 in mesial root and type 1 in distal root. [17][18][19] All these above studies show that the configuration of the root canal system in PMFM shows high diversity appearing with different frequencies in different ethnicities.…”

Section: Discussionmentioning

confidence: 97%

Variations in root canal morphology of the permanent mandibular first molar in Indian population- A CBCT study

John¹,

Santosh²,

Waghmare³

et al. 2021

IJMI

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The purpose of this study was to determine the variations in the number of canals and its morphology in permanent mandibular first molars using cone-beam computed tomography (CBCT) in a subset of Indian population. A total of 350 CBCT scans were collected and evaluated in all three orthogonal planes to determine the number of root canals and study their anatomic variations using Vertucci’s classification.: The total number of roots and root canals, the root canal configuration, the incidence, and the correlations between left- and right-side occurrences and between males and females were analysed. Statistically significant differences were evaluated using the chi-square test with SPSS 16.0 for Windows (SPSS, Chicago, IL), with significance set at p < 0.05.: The results of this study showed that predominantly, two thirds of the subjects had type VI mesial canal configuration and two-thirds had type I distal canal configuration. Also there was significant variance in the canal anatomy across gender and age of the subjects.: CBCT is a clinically useful tool in understanding the variations in root canal morphology, which guides in the assessment of the canal morphology aiding in successful root canal treatment.

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“…(38) used CBCT and Chhabra et al . (39) applied DOM and CBCT to determine C‐shaped configuration. Helvacioglu‐Yigit and Sinanoglu (40) used CBCT but not in both high and low resolution.…”

Section: Discussionmentioning

confidence: 99%

“…Chhabra et al . (39) investigated 42 samples by means of DOM and CBCT. On the other hand, Ladeira et al .…”

Section: Discussionmentioning

confidence: 99%

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The efficacy of five different techniques in identifying C‐shaped canals in mandibular molars

Baghbani¹,

Bagherpour

Ahmadis

et al. 2020

Aust Endodontic J

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Information regarding the canal anatomy especially in complex cases such as C‐shaped canals is essential for a successful treatment. In this study, five different methods for identification of C‐shaped canal configuration were compared. 108 extracted mandibular molars with fused roots were studied. Radiographic evaluation was carried out using periapical radiography and CBCT. After access cavity preparation, all specimens were evaluated by direct visual examination and then under dental operating microscope. Finally, the actual anatomy of each sample was determined by preparing horizontal cross sections of the roots (1 mm thick) and examining them under stereomicroscope as the gold standard. Among the techniques used, high‐resolution CBCT manifested the highest accuracy, whereas periapical radiography had the lowest. All approaches can be useful in reaching a correct diagnosis. CBCT, especially the low‐resolution modality, is an effective technique in the diagnosis of C‐shaped anatomy.

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Analysis of C-shaped canal systems in mandibular second molars using surgical operating microscope and cone beam computed tomography: A clinical approach

Cited by 9 publications

References 25 publications

C-shaped root canals of mandibular second molars in a Korean population: a CBCT analysis

C-shaped root canals of mandibular second molars in a Korean population: a CBCT analysis

Variations in root canal morphology of the permanent mandibular first molar in Indian population- A CBCT study

The efficacy of five different techniques in identifying C‐shaped canals in mandibular molars

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