Prevalence of three-rooted mandibular permanent first and second molars in the Saudi population

Riyahi, Abdullah Mahmoud; Alssum, Khalid; Hadadi, Hassan; Alsayyari, Abdulaziz; Alebrah, Terki; Aljarbou, Fahd

doi:10.1016/j.sdentj.2019.04.010

Cited by 10 publications

(14 citation statements)

References 27 publications

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“…In addition, 3-rooted molars were observed in higher incidence in the first molars (5.5%) than in the second molars (1.7%), consistent with a recent report on the Saudi population (3.05% and 1.48% for first and second molars, resp.) [ 2 ]. Other studies in different populations have shown a similar lower prevalence of extra rooted molars [ 34 , 37 ].…”

Section: Discussionmentioning

confidence: 99%

“…He reported that the majority of the mandibular second molars had two roots and three canals, with 57% of the mesial roots having type IV configuration and 97% of the distal canal having a type I configuration [ 42 ]. In a study published by Kantilieraki et al, 64.1% had a type II configuration in the mesial canal and the distal canal had a type I configuration in 97.7% in mandibular second molars in the Greek population [ 2 ]. In the study published by Torres et al, in Belgian and Chilean populations, 37.2% of the mesial roots of mandibular second molars had a type III configuration, 28.7% had a type V configuration in the Belgian population, 48.4% had type III canals, and 20.6% had type V configuration in the Chilean population.…”

Section: Discussionmentioning

confidence: 99%

“…Clinicians should be aware of the possible variations in root and root canal morphology and employ the available diagnostic tools to avoid missing some RCS anatomy. Mandibular molars are characterized by the presence of two roots (mesial and distal); however, the prevalence of three-rooted mandibular molars is common [ 2 , 3 ]. A complex morphology of the RCS may be encountered during the treatment of these teeth [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

“…In the literature search in a Saudi population, a few anatomical studies utilizing different methodologies have been performed on mandibular molars [ 2 , 5 , 20 – 24 ] with limitations including not exploring all aspects of morphology and emphasis on C-shaped canal configurations and extra rooted molars only. Thus, the present in vivo CBCT study was designed to evaluate the number of roots and root canals and internal morphology and compare the right and left permanent mandibular first and second molars.…”

Section: Introductionmentioning

confidence: 99%

“…In the literature search in a Saudi population, a few anatomical studies utilizing different methodologies have been performed on mandibular molars [2,5,[20][21][22][23][24] with limitations including not exploring all aspects of morphology and emphasis on C-shaped canal configurations and extra rooted molars only.…”

Section: Introductionmentioning

confidence: 99%

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Anatomical Evaluation of Mandibular Molars in a Saudi Population: An In Vivo Cone-Beam Computed Tomography Study

Mashyakhy

Jabali

Alabsi

et al. 2021

International Journal of Dentistry

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Objective. This study assessed the canal configuration of mandibular molars according to Vertucci’s classification of a Saudi population using cone-beam computed tomography (CBCT). Methods. A total of 290 first and 367 second mandibular molars were analyzed. The CBCT images were evaluated in three sections to inspect the number of roots and canals and canal system. The data are presented as frequencies and percentages. The chi-squared test was used to assess differences between both sides. SPSS was used for analysis, with a significance level of α ≤ 0.05. Results. Among the first molars, 95.4% of the teeth had two roots, and 64.5% had three canals. Approximately 57.9% showed Vertucci type IV mesial roots. Between the second molars, 89.6% of teeth had two roots and 80.4% had three canals. The frequency of Vertucci type IV (39.4%) was the highest in mesial roots. The first molars showed a high prevalence of 3-rooted teeth (5.5%). Both the right and left sides showed teeth with similar external and internal anatomy p < 0.05 . Conclusion. Most of the mandibular first and second molars had two roots and three canals. In the first mandibular molars, similar to the second mandibular molars, the majority of the mesial canals had Vertucci type IV, while the distal canals had Vertucci type I.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Anatomical Evaluation of Mandibular Molars in a Saudi Population: An In Vivo Cone-Beam Computed Tomography Study

Mashyakhy

Jabali

Alabsi

et al. 2021

International Journal of Dentistry

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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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Preferred Reporting Items for Epidemiologic Cross-sectional Studies on Root and Root Canal Anatomy Using Cone-beam Computed Tomographic Technology: A Systematized Assessment

Martins

Kishen

Marques

et al. 2020

Journal of Endodontics

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Introduction:The purpose of this study was to perform a quality assessment and provide a scientific-based checklist for prevalence studies on root and root canal anatomy by appraising the methodological quality of in vivo studies using cone-beam computed tomographic (CBCT) imaging as the assessment tool. Methods: A systematic assessment of the literature was conducted, and 211 studies were selected and submitted to a methodological evaluation. Data were grouped into categories such as journal impact factor, open access availability, language, study origin, journal publisher, sample size, and CBCT settings. Interrater agreement was calculated by applying the Holsti method and Cohen kappa. The Kruskal-Wallis test and Pearson correlation coefficient were undertaken to assess the different variables (a 5 0.05). Results: The included studies (N 5 211) reported data on 247,616 teeth from 41 countries. The maxillary first molar was the most studied tooth (n 5 69) and the second mesiobuccal canal the most investigated anatomic feature. The highest scores were associated with high-impact journals (r 5 0.482, P , .05), large sample sizes (r 5 0.374, P , .05), non-open access availability (P , .05), and English-based language (P , .05), but geographic region and journal publisher also had an impact on quality scores. The identified methodological gaps were used to formulate a scientific-based checklist for this type of study. Conclusions: Although a small improvement in the global quality of the studies was observed over the years, only less than half of the studies correctly addressed the participant recruitment and frame and had an adequate sample size or provided sufficient CBCT imaging settings. The proposed checklist highlights the most pertinent points to guide researchers throughout the experimental design and the implementation of epidemiological crosssectional studies of this nature.

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Prevalence of three-rooted mandibular permanent first and second molars in the Saudi population

Cited by 10 publications

References 27 publications

Anatomical Evaluation of Mandibular Molars in a Saudi Population: An In Vivo Cone-Beam Computed Tomography Study

Anatomical Evaluation of Mandibular Molars in a Saudi Population: An In Vivo Cone-Beam Computed Tomography Study

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

Preferred Reporting Items for Epidemiologic Cross-sectional Studies on Root and Root Canal Anatomy Using Cone-beam Computed Tomographic Technology: A Systematized Assessment

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