Worldwide Prevalence of a Lingual Canal in Mandibular Premolars: A Multicenter Cross-sectional Study with Meta-analysis

Martins, Jorge N.R.; Zhang, Yuerong; Zuben, Murilo von; Vargas, Walter; Seedat, Hussein C.; Santiago, Fábio; Aguilar, Rosa Elena Méndez; Ragnarsson, Magnús F.; Plotino, Gianluca; Parashos, Peter; Ounsi, Hani F.; Nole, Christian; Monroe, Adam; Kottoor, Jojo; González, José A.; Flynn, Daniel; Chaniotis, Angelos; Cassim, Imran; Bóveda, Carlos; Berti, Luiza; Altaki, Zaher; Alkhawas, Moataz-Bellah A.M.; Alfawaz, Hussam; Silva, Emmanuel J.N. L.; Versiani, Marco Aurélio

doi:10.1016/j.joen.2021.04.021

Cited by 21 publications

(30 citation statements)

References 31 publications

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“…These findings also match a prior study conducted by Alhadainy et al (20) , in which type V was the second most prevalent root canal type (16.4%). It also agrees with a multicenter cross-sectional study on the prevalence of lingual canals in mandibular premolars worldwide, which showed that Africa had the highest percentage of lingual canals in mandibular first premolars, with Egypt having a range of 27.4%-38.0% (29) . However, these findings contradict those found by Mohamed and Abdallah (23) , who reported that types II and III are the second and third most abundant anatomical types in mandibular first premolars in the Egyptian population.…”

Section: Discussionsupporting

confidence: 91%

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Cone-Beam Computed Tomographic analysis of Root and Root Canal Morphology of Mandibular Premolars in Egyptian Population

Gawdat

Samad

Sadek

2022

Egyptian Dental Journal

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The goal of this retrospective research was to assess the root and root canal morphology of mandibular premolars in the Egyptian population using cone-beam computed tomography. 300 CBCT scans were surveyed and the anatomy of 306 mandibular first and 288 second premolars was evaluated. The prevalence of the number of roots, root canals, canal morphologies according to the Vertucci classification and C-shaped canals was calculated and statistically assessed. Regarding the first and second mandibular premolars, the majority showed 1 root (95.4% and 98.6%, respectively) with 1 canal (84.6% and 97.9%). Most of the mandibular first (62.4%) and second premolars (96.2%) showed (type I) root canal morphology, followed by type V (27.1% and 2.1%) in the first and second premolars, respectively. A C-shaped root canal configuration was only detected in one mandibular second premolar (0.3%). Additional root canals and variations in root canal morphology should be considered when treating mandibular premolars to avoid failures.

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Section: Discussionsupporting

confidence: 91%

“…In general, the prevalence of type V was lower in mandibular 2nd premolars than in mandibular 1st premolars, that matched a previous study. which showed that the prevalence of 2nd lingual canal was 5.3% (29) .…”

Section: Discussionmentioning

confidence: 91%

Cone-Beam Computed Tomographic analysis of Root and Root Canal Morphology of Mandibular Premolars in Egyptian Population

Gawdat

Samad

Sadek

2022

Egyptian Dental Journal

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“…Anatomical variation in mandibular premolars has been commonly reported [3,[5][6][7]. Such variation may be related to racial and ethnic differences, genetics, environmental factors and differing geographic distribution [2,8].…”

Section: Introductionmentioning

confidence: 99%

“…Such variation may be related to racial and ethnic differences, genetics, environmental factors and differing geographic distribution [2,8]. Some studies of mandibular premolars have demonstrated the presence of two or more canals [7], and rarely three canals with three separate foramina [3]. The published literature has placed major emphasis on two mandibular premolar variations: the radicular groove [6], and a C-shaped morphology [5].…”

Section: Introductionmentioning

confidence: 99%

“…gov.za/publications/P03014/P030142011.pdf -last accessed 06-01-2022]. Whilst only a small number of publications have explored the dental anatomy of South African subjects in general [2,4,7,9], none have reported the morphology of mandibular premolars in exclusively Black South African individuals. Information regarding the dental anatomy of South Africa's largest population group is therefore scant.…”

Section: Introductionmentioning

confidence: 99%

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A study of mandibular premolar root and canal morphology in a Black South African population using cone-beam computed tomography and two classification systems

et al. 2022

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Purpose: An investigation of the configurations of mandibular premolar roots and canals in a population of Black South Africans. Methods: Cone-beam computed tomography analysis of 772 mandibular premolars was performed, and the premolars were classified according to the systems proposed by Vertucci and Ahmed et al. Root number, canal morphology, age, and sex were recorded. Fisher's exact test was used to determine relationships based on age and sex (P < 0.05). Results: Single roots were seen in the majority of mandibular premolars (97.1%). Single canal configurations (i.e., Vertucci Type 1/Ahmed et al.1 MP 1 ) were observed in 48.5% of first and 81.3% of second mandibular premolars. Mandibular first premolars demonstrated multiple canals in more than half of the sample (51.5%), and C-shaped morphology in more than one-tenth (11.1%). A relationship between sex and the presence of radicular grooves was demonstrated (P = 0.049), males being more likely to demonstrate this feature (P = 0.051). Multiple canals in mandibular first premolars also showed a relationship with sex (P = 0.005), a male predilection being evident (P = 0.007). The Ahmed et al. system proved superior to the Vertucci classification for reporting complex configurations and anatomical variations, although a greater number of unique categories were created. Conclusion: Diverse mandibular premolar root and canal morphology was observed in the studied population. Clinicians must be aware of common morphological features as well as possible anatomical variations in mandibular premolars, as failure to treat complete root canal systems may negatively impact endodontic treatment outcomes.

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Three-Dimensional Evaluation of Internal Tooth Anatomy

Nudera¹

2023

3D Imaging in Endodontics

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Worldwide Prevalence of a Lingual Canal in Mandibular Premolars: A Multicenter Cross-sectional Study with Meta-analysis

Cited by 21 publications

References 31 publications

Cone-Beam Computed Tomographic analysis of Root and Root Canal Morphology of Mandibular Premolars in Egyptian Population

Cone-Beam Computed Tomographic analysis of Root and Root Canal Morphology of Mandibular Premolars in Egyptian Population

A study of mandibular premolar root and canal morphology in a Black South African population using cone-beam computed tomography and two classification systems

Three-Dimensional Evaluation of Internal Tooth Anatomy

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