A Cone-Beam Computed Tomography Study of the Root Canal Morphology of Mandibular First Premolars in an Indian Subpopulation
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2017, Vol 16, Issue 12
Abstract
Introduction: Successful root canal therapy requires an in-depth knowledge of root canal morphology. The aim of this study was to investigate root canal morphology in mandibular first premolars in an Indian subpopulation using Cone-Beam Computed Tomography (CBCT). Methods: Four hundred extracted mandibular first premolars were selected for the study, based on the inclusion and exclusion criteria. CBCT acquisition of each specimen was done and the root canal morphology was reconstructed three-dimensionally with a semiautomatic threshold-based segmentation approach. The root canal morphology of the mandibular first premolars was classified according to Vertucci’s classification. The level of root canal bifurcation, if present, was also noted. Results: The mandibular first premolars showed Vertucci's Types I, II, III, IV, V and VIII. Type I was observed in 315 teeth [78.75%], Type II in 5 teeth [1.25%], Type III in 3 teeth [0.75%], Type IV in 64 teeth [16%], Type V in 11 teeth [2.75%] and Type VIII in 2 teeth [0.5%]. Root canal bifurcation, if present, tended to occur in the middle third (63.16%) or apical third (36.84%). Conclusions: Type I configuration represented the highest percentage (78.75%). There was high incidence of Type IV configuration as compared to Types V, II, III and VIII in the descending order. CBCT is a valuable diagnostic tool in the management of mandibular premolars with complex canal morphology.
Authors and Affiliations
Diana John, Jayasree S, Ramesh Kumar M, M. Abdul Rahman T. V, Gokulraj R
Keywords
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- EP ID EP250822
- DOI 10.9790/0853-1612075156
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