Cone beam computed tomography evaluation of c-shaped canal morphology in mandibular premolar teeth

Purpose: The aim of this study was to evaluate the prevalence and the morphology of c-shaped root canal(s) in mandibular premolars using cone beam computed tomography (CBCT) images.Materials and Methods: CBCT images of 1095 mandibular premolars were examined at coronal, middle, and apical levels of...

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Main Authors: Elif Aslan, A. Canberk Ulusoy, B. Güniz Baksı, Ali Mert, B. Hakan Şen
Format: Article
Language:English
Published: Istanbul University 2024-05-01
Series:European Oral Research
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Online Access:https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/D983FF93E6B44243BEEACC9FE5C0614E
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author Elif Aslan
A. Canberk Ulusoy
B. Güniz Baksı
Ali Mert
B. Hakan Şen
author_facet Elif Aslan
A. Canberk Ulusoy
B. Güniz Baksı
Ali Mert
B. Hakan Şen
author_sort Elif Aslan
collection DOAJ
description Purpose: The aim of this study was to evaluate the prevalence and the morphology of c-shaped root canal(s) in mandibular premolars using cone beam computed tomography (CBCT) images.Materials and Methods: CBCT images of 1095 mandibular premolars were examined at coronal, middle, and apical levels of the root canals. The type, the level, and the position (buccal or lingual) of the c-shaped anatomy were recorded. Absolute counts and percentages of different groups and subgroups of C-shape morphologies were calculated. The Chi-square test was used to compare the prevalence of C-shaped morphology between mandibular first and second premolars. The Z-test for proportions in independent groups was used to analyze the differences in mandibular C-shaped premolar proportions between location (left and right side) and tooth (first or second premolars) (p=0.05).Results: c-shaped root canal morphology was present in 44 teeth. The percentage of c-shaped morphologies was 6.9% and 1.6% in mandibular first and second premolars, respectively. Comparison of the first and the second premolars showed that C1 type (p=0.008) and C4b type (p=0.013) configurations are more common in the first premolars at the coronal level. In contrast, the C2 type configuration showed significantly higher prevalence in the second premolars (p=0.009). Additionally, the C4c type configuration was significantly frequent on the right premolars at the coronal level (p=0.038).Conclusions: C-shape canal morphology is a rare but complex anatomic feature in mandibular premolars. Therefore, clinicians should be aware of this complex root canal anatomy for the success of endodontic treatment in mandibular premolar teeth.
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spelling doaj-art-10e99f5e5b564a7097f8265eb92c1e8a2025-08-20T01:48:12ZengIstanbul UniversityEuropean Oral Research2651-28232024-05-01582707510.26650/eor.20241175997123456Cone beam computed tomography evaluation of c-shaped canal morphology in mandibular premolar teethElif Aslan0https://orcid.org/0000-0001-7609-999XA. Canberk Ulusoy1https://orcid.org/0000-0003-0899-9368B. Güniz Baksı2https://orcid.org/0000-0001-5720-2947Ali Mert3B. Hakan Şen4https://orcid.org/0000-0003-1173-909XEge Üniversitesi, Izmir, TurkiyeEge Üniversitesi, Izmir, TurkiyeEge Üniversitesi, Izmir, TurkiyeEge Üniversitesi, Izmir, TurkiyeEge Üniversitesi, Izmir, TurkiyePurpose: The aim of this study was to evaluate the prevalence and the morphology of c-shaped root canal(s) in mandibular premolars using cone beam computed tomography (CBCT) images.Materials and Methods: CBCT images of 1095 mandibular premolars were examined at coronal, middle, and apical levels of the root canals. The type, the level, and the position (buccal or lingual) of the c-shaped anatomy were recorded. Absolute counts and percentages of different groups and subgroups of C-shape morphologies were calculated. The Chi-square test was used to compare the prevalence of C-shaped morphology between mandibular first and second premolars. The Z-test for proportions in independent groups was used to analyze the differences in mandibular C-shaped premolar proportions between location (left and right side) and tooth (first or second premolars) (p=0.05).Results: c-shaped root canal morphology was present in 44 teeth. The percentage of c-shaped morphologies was 6.9% and 1.6% in mandibular first and second premolars, respectively. Comparison of the first and the second premolars showed that C1 type (p=0.008) and C4b type (p=0.013) configurations are more common in the first premolars at the coronal level. In contrast, the C2 type configuration showed significantly higher prevalence in the second premolars (p=0.009). Additionally, the C4c type configuration was significantly frequent on the right premolars at the coronal level (p=0.038).Conclusions: C-shape canal morphology is a rare but complex anatomic feature in mandibular premolars. Therefore, clinicians should be aware of this complex root canal anatomy for the success of endodontic treatment in mandibular premolar teeth.https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/D983FF93E6B44243BEEACC9FE5C0614Ec-shaped configurationcone beam computed tomographymandibular premolarprevalence studyroot canal anatomy
spellingShingle Elif Aslan
A. Canberk Ulusoy
B. Güniz Baksı
Ali Mert
B. Hakan Şen
Cone beam computed tomography evaluation of c-shaped canal morphology in mandibular premolar teeth
European Oral Research
c-shaped configuration
cone beam computed tomography
mandibular premolar
prevalence study
root canal anatomy
title Cone beam computed tomography evaluation of c-shaped canal morphology in mandibular premolar teeth
title_full Cone beam computed tomography evaluation of c-shaped canal morphology in mandibular premolar teeth
title_fullStr Cone beam computed tomography evaluation of c-shaped canal morphology in mandibular premolar teeth
title_full_unstemmed Cone beam computed tomography evaluation of c-shaped canal morphology in mandibular premolar teeth
title_short Cone beam computed tomography evaluation of c-shaped canal morphology in mandibular premolar teeth
title_sort cone beam computed tomography evaluation of c shaped canal morphology in mandibular premolar teeth
topic c-shaped configuration
cone beam computed tomography
mandibular premolar
prevalence study
root canal anatomy
url https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/D983FF93E6B44243BEEACC9FE5C0614E
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