Prevalence of mesiobuccal-2 canals in maxillary first and second molars among the Bruneian population—CBCT analysis

Abstract

Introduction Identification of the second mesiobuccal canal (MB-2) in maxillary molars is considered an endodontic concern of many practitioners due to its complex morphology. The use of Cone-beam Computed Tomography (CBCT) is a necessity for easier location of this elusive canal during endodontic treatment. Aim To study the prevalence of the MB-2 canal in the maxillary first and second molars amongst the Bruneian population. Materials and methods A retrospective study involving a review of scans taken from a CBCT scanner (J Morita; Veraviewepocs 3D R100 Panoramic/Cephalometric) over a 5-year period, from May 2016 to May 2021 was carried out. A total of 342 maxillary molars were evaluated independently by two observers. Any contradicting outcomes were discussed by both observers until a consensus was reached. In addition, the correlation of MB-2 canals with gender and age were calculated using the chi-squared test. Results The prevalence of MB-2 canal in the maxillary first and second molars are 51.3% and 29.8% respectively. Both males and females have a similar prevalence of MB-2 canals in the maxillary first and second molars. The incidence of MB-2 canals in both maxillary first and second molars significantly decreases with increasing age. No significant correlation between the prevalence of MB-2 canals with different gender groups in the population. Conclusions It is crucial for clinicians to identify the presence of MB-2 canals when performing endodontic treatment of the maxillary first and second molars. Varying prevalence has been reported for different populations. Recognising this wide-ranging prevalence amongst different populations will allow for greater predictability in ensuring endodontic treatment success.

Morphometric relationships in mesio‐buccal roots of maxillary first molars in Saudi subpopulation: A CBCT study

“…Recent studies suggest that MB2 canals are more prevalent in individuals aged below 50 compared to those aged above 50 years old [43]. By the age of 15, most individuals would have developed their permanent teeth, including molars.…”

Cone beam computed tomography analysis of the root and canal morphology of the maxillary second molars in a Hail province of the Saudi population

“…Several methods have been employed to investigate the root canal morphology of maxillary molars [ 5 ]. Cone beam computer tomography (CBCT), traditional periapical films, and the use of magnification instruments are among the clinical techniques [ [6] , [7] , [8] , [9] , [10] ]. Retrospective patient records of root canal treatment solely were also evaluated.…”

Evaluation of mesiobuccal root canal morphology and interorifice distance in maxillary first molar teeth: a CBCT study on Southeast Anatolian population

“…2 Studies investigating the incidence of the mesiobuccal second (MB2) canal in maxillary molars have reported detection rates ranging from 17.8% to 95.2%. [3][4][5][6][7][8] The ethnic origin of the population under investigation may have a strong impact on the incidence of canal variations. Clinicians often encounter difficulties in localizing the MB2 canal in maxillary molars due to excessive dentin accumulation at the canal orifice during cavity access opening.…”