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Clinical Oral Investigations
Published in: Clinical Oral Investigations 1/2019

01-01-2019 | Original Article

Prevalence of C-shaped canal system in mandibular first and second molars in a Saudi population assessed via cone beam computed tomography: a retrospective study

Authors: Hussam Alfawaz, Abdullah Alqedairi, Abdulrahman K. Alkhayyal, Abdulaziz A. Almobarak, Mohannad F. Alhusain, Jorge N. R. Martins

Published in: Clinical Oral Investigations | Issue 1/2019

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Abstract

Objectives

The purpose of this study was to determine the prevalence of the C-shaped root canal configuration, location of the longitudinal groove, sex differences, and unilateral/bilateral presence in mandibular first and second molars in a Saudi population using cone beam computed tomography (CBCT).

Materials and methods

CBCT images for the mandibular first and second molars of 487 patients (a total of 529 first molars and 681 s molars) were evaluated. The teeth were assessed for the presence of C-shaped root canals according to Fan criteria. Subdivisions were also made according to sex, direction of the longitudinal groove, and unilateral/bilateral presence.

Results

Only one C-shaped mandibular first molar was observed (0.19%), whereas 62 second molars (9.1%) exhibited C-shaped anatomy. Unilateral presence of the C-shaped root canal system was more common (53.85%). Female patients had a higher prevalence than males. Longitudinal grooves were most commonly found on the root lingual surface (58.1%).

Conclusions

The prevalence of the C-shaped canal configuration in a Saudi Arabian population was 0.19% in the mandibular first molar and 9.1% in the mandibular second molar. Longitudinal groove prevalence was highest on the lingual surface. Women had a significantly higher prevalence of the C-shaped canal configuration than men. Patients with unilateral presence of the C-shaped canal configuration were more common than those with bilateral presence.

Clinical relevance

Tooth type, patient sex, and ethnicity can help clinicians predict the prevalence of the C-shaped canal system in mandibular molars.
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Metadata
Title
Prevalence of C-shaped canal system in mandibular first and second molars in a Saudi population assessed via cone beam computed tomography: a retrospective study
Authors
Hussam Alfawaz
Abdullah Alqedairi
Abdulrahman K. Alkhayyal
Abdulaziz A. Almobarak
Mohannad F. Alhusain
Jorge N. R. Martins
Publication date
01-01-2019
Publisher
Springer Berlin Heidelberg
Published in
Clinical Oral Investigations / Issue 1/2019
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-018-2415-0

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