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Cone Beam Computed Tomography Evaluation of Root Canal Morphology of Permanent Mandibular First Molars in Chennai Population – A Cross Sectional Study
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| Author:
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NURUL SYAMIMI BINTI MOHD AZLAN SUNIL, MAHESH RAMAKRISHNAN
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| Abstract:
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The aim of this study was to evaluate the root canal morphology of mandibular first permanent molars in Chennai population by using cone beam computed tomography (CBCT). The study was conducted on 40 CBCT scans of bilateral mandibular sides of patients of both sexes and ranging in the age of 18 to 49 years. The inclusion criteria of this present study included (i) images with field of view covering the entire mandibular arch, (ii) images with at least one permanent mandibular first molar present, (iii) images free from artefacts, (iv) fully matured apices of mandibular first molars. (v) no root canal fillings, posts or full crown restoration in mandibular first molars. The teeth involved were investigated for the number of roots in each tooth, number of root canal per tooth, length of each root and root canal configuration in each root (Vertucci 1984). Data was analysed using SPSS Software and a chi-square test was done to find out association between variables. All of the mandibular first molars had two roots. 75.4% was found to have three canals, 21.7% had four canals and 2.9% had only two canals. No statistically significant association was found between the number of root canal orifice and gender (p>0.05). The average length of mesial roots in males was 13.24mm while mesial roots of females showed an average length of 12.52mm. As for the distal root, the average length in males was 14.43mm and 12.02mm in females. In mesial root, type IV (65.2%) configuration was most prevalent. In the distal root, type I configuration (74%) was the most prevalent. Association between root canal configuration in distal and mesial root and gender was statistically not significant (p>0.05). Within the limits of this study, it is observed that all the mandibular first molars had two roots and a majority showed higher prevalence of three root canal orifices (75.4%). Vertucci type IV was more common in mesial root (65.2%) whereas type I configuration was more common in the distal root (74%).
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| Keyword:
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cone-beam computed tomography, endodontics, mandibular first molar, root canal morphology, Vertucci’s classification
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| EOI:
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| DOI:
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https://doi.org/10.31838/ijpr/2021.13.03.034
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| Download:
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