Anatomical Investigation of C-shaped Root Canal Systems of Mandibular Molars in a Middle Eastern Population: A CBCT Study.

Aim: The aim of this study is to identify the prevalence of C-shaped root canal systems in mandibular first and second molars in a Lebanese population, and to determine the relationship between C-shaped root canal systems and different factors (age, gender, and tooth location) and to examine the root canal system's morphology along the root.

Materials And Methods: The presence of C-shaped root canal systems in 648 mandibular molars from 257 patients was analyzed using cone-beam computed tomography (CBCT). The sample included 296 and 352 mandibular first and second molars, respectively.

Anatomical Investigation of Middle Mesial Canals of Mandibular Molars in a Middle Eastern Population: A Cross-sectional Cone-beam Computed Tomography Study.

Aim: To identify the prevalence of middle mesial canals (MMC) in mandibular molars in a Lebanese population to determine the relationship between MMC and different factors (age, sex, and tooth type) and to examine the canal's morphological aspects (category, length, orifice position, and dentin width toward furcation).

Materials And Methods: The presence of MMC in the mesial roots of 505 mandibular molars of 200 patients was analyzed using cone-beam computed tomography (CBCT). Then, the position of the MMC orifices with respect to the pulpal floor and the main canals orifices, and the width of dentin along the canal toward the furcation were determined using 3D Slicer 4.