Retrospective CBCT Analysis Of Root Canal Morphology Of Mandibular Incisors In Indian Sub Population

Aim: The aim of the study was to analyze the root canal morphology of permanent mandibular incisors in Indian subpopulation using cone beam computed tomography (CBCT). Materials and Methods: A total of 100 patients with 400 well□developed mandibular incisors with out attrition were evaluated. CBCT images were retrieved from the database of patients who received treatment at Saveetha Dental College. The following parameters were evaluated using CBCT: (1) the number of roots; (2) the number of canals; (3) canal configuration according to Vertucci's classification; (4) length of the tooth (5) point of bifurcation of canal from the incisal edge. Results: The data collected consisted of 53% males and 47% females. The canal morphology was analyzed according to Vertucci classification and Type I configuration was observed in 64.5%, Type III in 32.5% and Type II in 0.03% of the population studied. 71% of mandibular central incisors and 58% of mandibular lateral incisors had Type I configuration, 29% of mandibular central incisors and 36% of mandibular lateral incisors had Type III and only 0.06% of mandibular lateral incisors had Type II configuration. In the teeth with two canals, Type III configuration was most common. There were no statistically significant differences found between the mandibular central and lateral incisors central and lateral incisors in terms of length of the teeth, type of vertucci classification or point of bifurcation (p>0.05). Conclusion: CBCT can be of great use in locating the accessory canal and analyzing canal configurations in mandibular incisors. Knowledge of level of bifurcation of the canal can aid in effectively identifying the extra canals and promote appropriate disinfection of the root canal system.