University of Khartoum

Cone Beam Computed Tomography Study of the Root Canal Morphology of Mandibular Permanent Incisors among Sudanese in Khartoum state

Cone Beam Computed Tomography Study of the Root Canal Morphology of Mandibular Permanent Incisors among Sudanese in Khartoum state

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Title: Cone Beam Computed Tomography Study of the Root Canal Morphology of Mandibular Permanent Incisors among Sudanese in Khartoum state
Author: Mohammed, Hussein Ibrahim Hussein
Abstract: Background: Comprehensive understanding of the complexity of the root canal system is necessary for successful endodontic treatment. Furthermore, knowledge of the internal anatomy of the teeth is fundamental for the proper preparation and filling of the root canal system and the consequent success of endodontic treatment. The clinician should be familiar with the most common types of teeth anatomy and the most common anatomic variations encountered in daily practice. Mandibular anterior teeth typically present with a single root and a single canal, however, canal configurations in mandibular anterior teeth may significantly vary with respect to ethnicity, race, and gender. This study aims to evaluate differences in the morphology of mandibular permanent incisors including the number of roots, root canals, root length, canal configuration and canal curvature among Sudanese in Khartoum state and to compare in respect to gender and tooth type. Method: A total of 304 mandibular permanent incisors were collected from database of patients who visited 3D Scan dental Radiology center in Khartoum State. Three planes analysis (axial, sagittal and coronal) was performed with a slice thickness of 0.1 mm to evaluate the following: the number of roots and root canals, root lengths, canal configuration and curvatures. All the measurements and analysis were performed first by the investigator and then the results were confirmed by a radiologist. Canal configuration was classified according to the Vertucci’s method while canal curvature was measured using Schneider technique. The data was collected using data collection sheet. The results were analyzed using IBM SPSS version 22. Pearson’s Correlation and student’s T test were used to detect significant results, p value < 0.05 was considered significant. Results: All incisors had one root (n=304), 77.3% had one canal while 23% showed two canals. The average length was 20.5 mm. Six types of Vertucci canal configurations were seen. Type I was most prevalent (76%). In coronal view 55.9% of incisors had straight canal and the rest showed moderate and severe curvatures (41.4% and 2.6%, respectively). In sagittal view most of the canals had moderate curvature (65.8%) followed by straight and severe curvatures (28.6% and 5.6%, respectively). Prevalence of second canal and root length were significantly higher in males (P < .05). Type I Vertucci canal configuration was the most prevalent for both males (65.3%) and females (80.9%). The degree of primary curvature was significantly higher in males in sagittal view (P < .05) and no significant difference in coronal view (p=0206). In comparison between centrals and laterals no significant differences were found except in root length (P < .05). Conclusion: Type 1 Vertucci configuration was the most prevalent. Most of the incisors showed moderate to severe primary curvatures. Males had a much higher incidence of two root canals. Large studies are needed to evaluate morphological changes in different sub-populations.
URI: http://khartoumspace.uofk.edu/123456789/26583


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