A cone-beam computed tomography study of the prevalence of two or more canals in mandibular anteriors in the Chennai population
The study of root canal anatomy is vital for the success of root canal treatment. The advent of computed tomography (CT) helped in the better understanding of the root canal anatomy. The use of CT entailed a higher radiation and higher cost. The entry of cone-beam computed tomography brought down the cost of imaging and lowering the radiation dose required with a superior resolution. The aim of this study was to study the prevalence of two or more canals in the mandibular anteriors and to check for the bilateral presentation of canal pattern. The study had a sample size of 50 with 32 males and 18 females. The total number of teeth included in the study was 298. The scans were analyzed for the canal anatomy using vertucci classification. The results of the scan revealed the predominant pattern in the mandibular canine was Type I (84% for 43 and 78% for 33) and for the mandibular lateral incisor was Type I (58% for 42 and 44% for 32). The pattern of greater prevalence in mandibular central incisor was also Type I (68 % for 41 and 62% for 31). The results were compared for bilateral presentation of the same type of canal using Pearson correlation analysis. The test yielded statistically significant results (P < 0.05). From the above results, it is discernible that only lateral incisors had a tendency for bifid canal. Moreover, the canal morphology was bilaterally symmetrical the teeth across the quadrant.
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