Year : 2016

Volume : Volume 6

Issue : Issue 1s

Address for correspondence :
Dr. Bhupesh Gandhi.
bhupesh.gandhi30@gmail.com

Abstract

Aim: To evaluate morphological variations, number of roots and root canals in mandibular premolars with the help of cone beam computed tomography (CBCT) among Jodhpur population. Materials and Method: 113 extracted mandibular first premolars and 132 mandibular second premolars in Rajasthan population were collected from the dental hospitals in Jodhpur.The teeth were mounted on a modelling wax in an arch form (ten teeth in one arch) &the apices of the roots of each row in a single plane. All images were taken using a Kodak 9000 3D CBCT machine. The tooth position, number of roots and canals, and canal configuration according to Vertucci’s and Melton’s classification were recorded. Result: The results showed that 99.1% of mandibular first premolars had one root and 0.9% had two roots and third root was not found; 84.9% had one canal, 15 % had two canals and third root canal was not found. The prevalence of C shaped canal was 2.6%. All mandibular second premolars had one root; 78.7% had one canal and 18.1% had two canals. The prevalence of C shaped canal was 1.6%. Conclusion: Mandibular second premolar had a more canal variation as compared to mandibular 1st premolar. The prevalence of C shaped canal was mostly type 1. CBCT has potential as an auxiliary tool in the evaluation of mandibular premolars with complex canal morphology to improve the quality of root canal therapy.

Keywords: Cone-beam computed tomography, Mandibular premolar, Morphology, Root canal configuration.