Radicular anatomy of permanent mandibular second molars in an Iranian population: A preliminary study

Akhlaghi, Nahid Mohammadzadeh; Abbas, Fatemeh Mashadi; Mohammadi, Mostafa; Shamloo, Mohammad Reza Karami; Radmehr, Orkideh; Kaviani, Ramin; Rakhshan, Vahid

doi:10.4103/1735-3327.187883

Cited by 8 publications

(4 citation statements)

References 23 publications

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“…However, in a study by Rahimi et al ( 2008 ), who used extracted teeth, the prevalence of C‐shaped canals was reported to be 7.2%. The prevalence of C‐shaped canals was reported to be 6.96% in an ex vivo study by Akhlaghi et al ( 2016 ), and also a systematic review (Naseri et al, 2013 ). This value was 2% in the present study which was close to the rate reported by Jahromi et al ( 2013 ), (3%) using the clearing technique, probably because both studies were conducted on the Iranian population.…”

Section: Discussionmentioning

confidence: 95%

“…Although some studies emphasize that C-shaped canals are not highly common (Madani et al, 2017;Naseri et al, 2013;Rahimi et al, 2017Rahimi et al, , 2008, they are not rare to find either (Nair, 2006;Rahimi et al, 2017). Despite the availability of several studies regarding the prevalence of C-shaped canals in the Iranian population, the reported results have been conflicting (Akhlaghi et al, 2016;Haddadi et al, 2019;Janani et al, 2018;Madani et al, 2017;Rad et al, 2020;Sarraf et al, 2022;Seo et al, 2012;Tafakhori et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…Despite the availability of several studies regarding the prevalence of C‐shaped canals in the Iranian population, the reported results have been conflicting (Akhlaghi et al, 2016 ; Haddadi et al, 2019 ; Janani et al, 2018 ; Madani et al, 2017 ; Rad et al, 2020 ; Sarraf et al, 2022 ; Seo et al, 2012 ; Tafakhori et al, 2022 ). Inconsistencies in the reported results are most likely caused by variations in statistical populations and study methodologies.…”

Section: Introductionmentioning

confidence: 99%

“…For example, a wide range of variation exists in the reported prevalence rates for C‐shaped canals in second molars (Haddadi et al, 2019 ; Janani et al, 2018 ; Madani et al, 2017 ; Ostevar Rad et al, 2020 ). Also, previous studies on this topic mostly had a small sample size (Akhlaghi et al, 2016 ; Janani et al, 2018 ; Madani et al, 2017 ; Sarraf et al, 2022 ; Tafakhori et al, 2022 ). Therefore, further studies with a larger sample size are required in this respect to address the inconsistencies in the published studies, and find more accurate results, because a larger sample size would minimize the risk of errors.…”

Section: Introductionmentioning

confidence: 99%

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Prevalence of C‐shaped canals and three‐rooted mandibular molars in the Iranian population by using cone‐beam computed tomography

Shekarian,

Majlesi,

Zare Jahromi

2023

Clinical & Exp Dental Res

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ObjectivesThis study aimed to evaluate the prevalence of C‐shaped canals and three‐rooted mandibular molars in the Iranian population using cone‐beam computed tomography (CBCT).Materials and MethodsThis study evaluated mandibular teeth on 292 CBCT scans of patients referred to the Department of Radiology, Faculty of Dentistry, Islamic Azad University, Isfahan, Iran. All CBCT scans were obtained with the same three‐dimensional CBCT scanner, and sections were reconstructed in all three planes (sagittal, axial, and coronal) with 1 mm slice thickness. A total of 291,402, and 200 first, second, and third molars, respectively, were evaluated. Data were analyzed using SPSS software (version 26.0).ResultsOf 291 mandibular first molars, 0.7% were single‐rooted, 96.6% were two‐rooted, and 2.7% were three‐rooted. The prevalence of C‐shaped canals was 1.7% in mandibular first molars. Of 402 mandibular second molars, 8.5% were single‐rooted, 90.5% were two‐rooted, and 1% were three‐rooted. The prevalence of C‐shaped canals was 2% in mandibular second molars. Of 200 mandibular third molars, 21.5% were single‐rooted, 77.5% were two‐rooted, and 1% were three‐rooted. The prevalence of C‐shaped canals was 2% in mandibular third molars.ConclusionIn the present study, the majority of mandibular molars were two‐rooted, and three‐rooted mandibular molars were less common. The third and second mandibular molars both had an increased prevalence of C‐shaped canals. Mandibular first molars had the highest prevalence of three‐rooted molars.

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Section: Discussionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Prevalence of C‐shaped canals and three‐rooted mandibular molars in the Iranian population by using cone‐beam computed tomography

Shekarian,

Majlesi,

Zare Jahromi

2023

Clinical & Exp Dental Res

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C-Shaped Root Canal System

Gutmann

2018

The Root Canal Anatomy in Permanent Dentition

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Study of internal morphology of root-canal treated single-rooted mandibular second molars in a Greek population

et al. 2018

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SummaryBackground/Aim: To determine the prevalence of single-rooted mandibular second molars in a Greek population and examine their internal morphology with the aid of intraoral periapical radiography.Material and Methods: Clinical records of 531 root-canal treated permanent single-rooted mandibular second molars were collected from the Postgraduate Clinic of the Department of Endodontology, Dental School, Aristotle University of Thessaloniki, Greece and from private dental clinics in the same city. The clinical records, along with the radiographic examination, were evaluated to determine the overall frequency of single-rooted mandibular second molars together with the number of root canals and their course. The root canals were categorized using Vertucci’s classification with the addition of 3 further types where appropriate.Results: Out of 531 mandibular second molars; 102 (19.2%) presented a single root; 427 (80.4%) presented two roots; 2 (0.4%) presented three roots. In a total of 102 single-rooted mandibular second molars 31 (30.3%) presented with Type I, 18 (17.6%) with Type II, 14 (13.7%) with Type IV, 7 (7%) with 3 additional root canal types and 32 (31.4%) with a C-shaped root canal system.Conclusions: One out five mandibular second molars was single-rooted in a Greek population. The internal morphology of these teeth can be very complex with regard to the numbers and courses of root canals.

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Radicular anatomy of permanent mandibular second molars in an Iranian population: A preliminary study

Cited by 8 publications

References 23 publications

Prevalence of C‐shaped canals and three‐rooted mandibular molars in the Iranian population by using cone‐beam computed tomography

Prevalence of C‐shaped canals and three‐rooted mandibular molars in the Iranian population by using cone‐beam computed tomography

C-Shaped Root Canal System

Study of internal morphology of root-canal treated single-rooted mandibular second molars in a Greek population

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