{"title":"Evaluation of the Prevalence and Morphology of Middle Mesial Canals in Bifid-Apex Mandibular Molars Using Micro-CT.","authors":"Pembe Büşra Kaygısız, Cangül Keskin, Ali Keleş","doi":"10.1111/aej.70083","DOIUrl":null,"url":null,"abstract":"<p><p>This micro-CT study analysed 90 mandibular mesial roots with and without a bifid apex. Number of orifices and main apical foramina, main canal counts at coronal/middle/apical thirds, middle mesial canal (MMC) presence, and MB-ML inter-orifice distance in two-orifice roots were measured. The prevalence of MMCs was significantly higher in bifid roots (35.5%) compared to non-bifid roots (11.4%) (p < 0.05). Bifid roots exhibited a significantly higher mean number of apical foramina (2.24 ± 0.43) than non-bifid roots (1.33 ± 0.52) (p < 0.05). In roots with two orifices, the MB-ML inter-orifice distance was significantly wider in the bifid group (2.57 ± 0.56 mm) compared to the non-bifid group (2.28 ± 0.50 mm) (p < 0.05). Canal configurations also differed significantly; bifid roots were predominantly Vertucci Type V (31.1%) and Type IV (26.7%), while non-bifid roots frequently presented with Type I (33.3%) and Type III (26.7%).</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":" ","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Australian Endodontic Journal","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1111/aej.70083","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
引用次数: 0
Abstract
This micro-CT study analysed 90 mandibular mesial roots with and without a bifid apex. Number of orifices and main apical foramina, main canal counts at coronal/middle/apical thirds, middle mesial canal (MMC) presence, and MB-ML inter-orifice distance in two-orifice roots were measured. The prevalence of MMCs was significantly higher in bifid roots (35.5%) compared to non-bifid roots (11.4%) (p < 0.05). Bifid roots exhibited a significantly higher mean number of apical foramina (2.24 ± 0.43) than non-bifid roots (1.33 ± 0.52) (p < 0.05). In roots with two orifices, the MB-ML inter-orifice distance was significantly wider in the bifid group (2.57 ± 0.56 mm) compared to the non-bifid group (2.28 ± 0.50 mm) (p < 0.05). Canal configurations also differed significantly; bifid roots were predominantly Vertucci Type V (31.1%) and Type IV (26.7%), while non-bifid roots frequently presented with Type I (33.3%) and Type III (26.7%).
期刊介绍：
The Australian Endodontic Journal provides a forum for communication in the different fields that encompass endodontics for all specialists and dentists with an interest in the morphology, physiology, and pathology of the human tooth, in particular the dental pulp, root and peri-radicular tissues.
The Journal features regular clinical updates, research reports and case reports from authors worldwide, and also publishes meeting abstracts, society news and historical endodontic glimpses.
The Australian Endodontic Journal is a publication for dentists in general and specialist practice devoted solely to endodontics. It aims to promote communication in the different fields that encompass endodontics for those dentists who have a special interest in endodontics.
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