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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.
Clin Oral Investig. 2019 Jan; 23(1):107-112.CO

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.

Authors+Show Affiliations

Endodontic Division, Department of Restorative Dental Sciences, College of Dentistry, King Saud University, P.O. Box 60169, Riyadh, 11545, Saudi Arabia. halfawaz1@ksu.edu.sa.Endodontic Division, Department of Restorative Dental Sciences, College of Dentistry, King Saud University, P.O. Box 60169, Riyadh, 11545, Saudi Arabia.Private Dental Practice, Riyadh, Saudi Arabia.Private Dental Practice, Riyadh, Saudi Arabia.Private Dental Practice, Riyadh, Saudi Arabia.Department of Endodontics, Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29536188

Citation

Alfawaz, Hussam, et al. "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." Clinical Oral Investigations, vol. 23, no. 1, 2019, pp. 107-112.
Alfawaz H, Alqedairi A, Alkhayyal AK, et al. 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. Clin Oral Investig. 2019;23(1):107-112.
Alfawaz, H., Alqedairi, A., Alkhayyal, A. K., Almobarak, A. A., Alhusain, M. F., & Martins, J. N. R. (2019). 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. Clinical Oral Investigations, 23(1), 107-112. https://doi.org/10.1007/s00784-018-2415-0
Alfawaz H, et al. 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. Clin Oral Investig. 2019;23(1):107-112. PubMed PMID: 29536188.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - 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. AU - Alfawaz,Hussam, AU - Alqedairi,Abdullah, AU - Alkhayyal,Abdulrahman K, AU - Almobarak,Abdulaziz A, AU - Alhusain,Mohannad F, AU - Martins,Jorge N R, Y1 - 2018/03/13/ PY - 2018/01/04/received PY - 2018/03/01/accepted PY - 2018/3/15/pubmed PY - 2019/6/4/medline PY - 2018/3/15/entrez KW - C-shaped canal KW - Cone beam computed tomography KW - Dental anatomy KW - Longitudinal groove KW - Mandibular molar SP - 107 EP - 112 JF - Clinical oral investigations JO - Clin Oral Investig VL - 23 IS - 1 N2 - 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. SN - 1436-3771 UR - https://www.unboundmedicine.com/medline/citation/29536188/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_ L2 - https://dx.doi.org/10.1007/s00784-018-2415-0 DB - PRIME DP - Unbound Medicine ER -