Abstract
Objective: The current study aimed to investigate the relationship between canal configuration, distance between mesiobuccal (MB) and mesiolingual (ML) orifices and the degree of canals curvature in the mesial root of permanent mandibular first molars in a sample of Sudanese population using cone-beam computed tomography (CBCT). Material and Methods: A total of 143 extracted mandibular first molars were processed and scanned with CBCT to determine the configuration of the mesial root canals according to the Vertucci classification. The interorificial distance and the degree of canal curvature in clinical (CV) and proximal (PV) views using Schneider technique were assessed. Results: The commonest canal configuration was type IV (53.1%). The interorificial distance was significantly shorter in type VI compared to other types (P < 0.05). Significant association was found for type IV between the MB and ML canal in the primary curvature regarding CV and PV, and for type II regarding PV in primary and secondary curvature (P < 0.05). In type IV the degree of secondary curvature of MB canal regarding PV, and in the ML canal in CV was significantly lower compared to other types (P < 0.05). Significant correlation was seen in PV of primary curvature in the MB for type VI (P < 0.05). Conclusion: The interorificial distance and secondary curvatures in CV for MB canal were found to be key factors for predicting root canal patterns in PV.KeywordsCanal morphology; Canal curvature; Interorificial distance; Mandibular molars.
Highlights
Endodontic treatment is generally done thorough biomechanical instrumentation, chemical debridement, followed by hermetic obturation of the root canal system [1]
When the degree of curvature in Clinical View (CV) and Proximal View (PV) was related to canal configuration, the degree of the secondary curvature of mesiolingual canal in proximal views was significantly (P= 0.003) lower in type IV (19.9±10.2 degree) than type II (30.1±11.0 degree) and type VI (30.5±11.7 degree)
It is helpful in the detection of the anatomical details with more accuracy when compared to most techniques used [16,19]. It cannot be used for retains endodontic treatment due to it is high radiation dose, at the same time it is expensive compared to traditional periapical images, that why the current study trying to provide basic data to enhance the understanding of root canal morphology during root canal treatment
Summary
Endodontic treatment is generally done thorough biomechanical instrumentation, chemical debridement, followed by hermetic obturation of the root canal system [1]. Mandibular first molar is a common endodontically treated tooth due to its early eruption in the oral cavity It has a complex anatomy, and a lot of varieties in the morphology and configurations of the mesial canals, which may affect the outcome of endodontic treatment [6]. The anatomical complexity of the root canal system of mandibular first molar roots, and organization of the flora as biofilms in inaccessible areas of the canal system presents, difficulties in which instrumentation and irrigation alone are hard to achieve [7] This might strongly implicate that well-built knowledge of root morphology will positively impact the quality of treatment [8], and essential to determine the most appropriate method for instrumentation and obturation as some types might present challenges in both aspects [9,10,11,12]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
