Assessment of the Prevalence of Middle Mesial Canal in Mandibular First Molar: A Multinational Cross-sectional Study with Meta-analysis

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dc.contributor.authorHatipoglu, Fatma Pertek
dc.contributor.authorMagat, Guldane
dc.contributor.authorHatipoglu, Omer
dc.contributor.authorTaha, Nessrin
dc.contributor.authorAlfirjani, Suha
dc.contributor.authorZainal, Imran
dc.contributor.authorLehmann, Anna Paulina
dc.date.accessioned2024-02-23T14:12:55Z
dc.date.available2024-02-23T14:12:55Z
dc.date.issued2023
dc.departmentNEÜen_US
dc.description.abstractBackground: An additional canal found in the mandibular first molar (M1M) is the middle mesial canal (MMC), which is often missed during root canal treatment. In this study, the prevalence of MMC in M1M on cone-beam computed tomography (CBCT) images was evaluated in 15 countries, along with the effect of some demographic factors on its preva-lence. Methods: Deidentified CBCT images were scanned retrospectively, and the ones including bilateral M1Ms were included in the study. A written and video instruction program explaining the protocol to be followed step-by-step was provided to all observers to calibrate them. The CBCT imaging screening procedure consisted of evaluating three planes (coronal, sagittal, and axial) after a 3-dimensional alignment of the long axis of the root(s). The presence of an MMC in M1Ms (yes/no) was identified and recorded. Results: In total, 6304 CBCTs, representing 12,608 M1Ms, were evaluated. A significant difference was found between countries (P < .05). MMC prevalence ranged from 1% to 23%, and the overall prevalence was 7% (95% confidence interval [CI]: 5%-9%). No significant differences were found between the left and right M1M (odds ratio = 1.09, 95% CI: 0.93, 1.27; P > .05) or between genders (odds ratio= 1.07, 95% CI: 0.91, 1.27; P > .05). As for the age groups, no significant differences were found (P > .05). Conclusions: The prevalence of MMC varies by ethnicity, but it is generally estimated at 7% worldwide. Physicians must pay close attention to the presence of MMC in M1M, especially for opposite M1Ms, due to the prevalence of MMC being significantly bilateral. (J Endod 2023;49:549-558.)en_US
dc.identifier.doi10.1016/j.joen.2023.02.012
dc.identifier.endpage558en_US
dc.identifier.issn0099-2399
dc.identifier.issn1878-3554
dc.identifier.issue5en_US
dc.identifier.pmid36863567en_US
dc.identifier.scopus2-s2.0-85151402457en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage549en_US
dc.identifier.urihttps://doi.org/10.1016/j.joen.2023.02.012
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12242
dc.identifier.volume49en_US
dc.identifier.wosWOS:000995909600001en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherElsevier Science Incen_US
dc.relation.ispartofJournal Of Endodonticsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCone-Beam Computed Tomographyen_US
dc.subjectEndodonticsen_US
dc.subjectPrevalence Studiesen_US
dc.subjectRoot Canalen_US
dc.titleAssessment of the Prevalence of Middle Mesial Canal in Mandibular First Molar: A Multinational Cross-sectional Study with Meta-analysisen_US
dc.typeArticleen_US

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