C-Shaped root canal system

Abstract

While the prevalence of C-shaped canals is low in many parts of the world, the incidence may be high in specific countries and ethnic populations. One of the contributing factors that masks more detailed information on this anatomical variation is the difficulty in using periapical radiographs alone to determine its presence. While the literature is replete with studies that indicate that mandibular second molar and first premolar may exhibit this variation most often, other teeth such as the maxillary molars may also demonstrate this anatomical complexity.