Morphological Study of Root Canals of Maxillary Molars by Cone-Beam Computed Tomography

Abstract

The aim of this study was to evaluate the root canal morphology of permanent maxillary molars by cone-beam computed tomography (CBCT) using the classifications of Weine et al. and Vertucci and to correlate the findings with sex, age, position in the dental arch, and prevalence of a second canal in the mesiobuccal root (MB2). A total of 414 scans were evaluated, corresponding to 1,000 teeth. The assessment consisted of coronal, axial, and sagittal reconstructions using i-CAT Workstation®. Type 0 was assigned when neither classification could be applied. The data were entered into an Excel spreadsheet and analyzed using SPSS. The chi-squared test or Fisher’s exact test was used to compare the distribution of root canal morphology classified using the two systems. Analysis of the distribution of Weine types showed a predominance of type III in mesiobuccal roots, while type 0 predominated in distobuccal and palatal roots. Vertucci type IV predominated in mesiobuccal and distobuccal roots and type VII in palatal roots. There was no difference in the distribution of morphological canal types in permanent maxillary molars evaluated by CBCT according to sex, age group, or position in the dental arch of the patients. MB2 canals were identified in 68.4% of the teeth evaluated.

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

“…Endodontic therapy is more challenging for practitioners since root canal structural patterns differ by ethnicity [ [12] , [13] , [14] , [15] , [16] , [17] , [18] , [19] , [20] , [21] , [22] , [23] ]. The effective management of periapical infections is crucial for the successful outcome of endodontic therapy.…”

Morphometric Comparison and Prognostic Analysis of Permanent Maxillary Central Incisors with Eruption Disturbances—A Cross-Sectional Study

“…Studies utilizing panoramic radiographs and CBCT have consistently investigated impacted maxillary canines [ 29 , 30 , 31 , 32 ] or the root morphology and impaction of the posterior teeth [ 33 , 34 , 35 ]. Previous studies have also reported morphological analyses of impacted maxillary central incisors [ 6 , 36 , 37 , 38 , 39 ].…”

Morphology of the Second Mesiobuccal Canal in the Maxillary Second Molar

“…The existence of the MB2 canal is one of the factors responsible for the morphological complexity of maxillary second molars (Rosaline et al, 2021). Numerous studies in various populations using various methods have shown considerable variation in identifying the MB2 canal in the maxillary second molars (Betancourt et al, 2015;Ghoncheh et al, 2017;Naseri et al, 2018;Kharouf & Mancino, 2019;D'Souza et al, 2021;Magalhães et al, 2022). Therefore, one of the primary reasons an endodontic treatment on maxillary second molars is incomplete might be the failure to detect the MB2 canal (Betancourt et al, 2015;Kharouf & Mancino, 2019).…”