Role of CBCT in C-Shaped Canals

Abstract

C-shaped canal configuration is a root canal modification commonly seen in mandibular second molars. This canal variation can pose a challenge to the clinician during negotiation, debridement and obturation. Knowledge regarding the C-shaped canal configuration is needed to achieve success in endodontic therapy. The development of endodontic therapy has been continuously aided by the application of imaging techniques that permit precise and sensitive examination of anatomical structures. For dentists, the diagnosis with traditional radiography techniques and the management of fillings and debridement are typically challenging. Three dimensional (3D) spatial anatomical navigation is enabled by cone beam computed tomography (CBCT) in 3 volumetric planes (sagittal, axial and coronal) which provides greater accuracy in the identification of C-shaped canal morphologies. This narrative review mentions the theoretical concepts regarding C-shaped canal, Role of CBCT in endodontics, Elements of interpretation and application of CBCT scans in case of C – shaped canal anatomy, limitations in availability, assessment and interpretation of CBCT images.