Evaluation of Root Canal Configuration of Mandibular Premolars Using CBCT in a Defined Population of North India

Aim:The aim of the study was to evaluate the canal configuration in the mandibular premolars in Delhi/NCR population of North India using cone-beam computed tomography (CBCT).Materials and methods: About 120 CBCT scans were assessed for the root canal configuration in the mandibular premolar according to Vertucci classification.The existence of bilateral symmetry of configuration in the right-and left-side premolars and any gender difference was also studied.Chi-square test was used for statistical analysis.Results: Type I configuration was the most common in both mandibular premolars.In mandibular first premolar, there was 32.3% chance of canal variation from type I, and in the second premolar, approximately, 18.2% chances of variation exists.No gender difference was observed and bilateral symmetrical existence of canal configuration was seen. Conclusion:The most prevalent configuration in mandibular premolars is type I.In the mandibular second premolar, chances of variant configuration are less as compared with the first premolar.