Abstract
The current work was perfumed with objectives 1) to carry out analysis for the prevalence and gender predilection of RMF(retromolar foramen) and RMC (retromolar canal) in a sample of adult Egyptian population using CBCT, 2) To determine the location and adjacency of the RMF to the lower 2nd molars, 3) To assess the height and suggest for morphological classification of the RMC.CBCT scans of one hundred and fifty two adult participants (60 male and 92 female) showing the entire retromolar region of the mandible bilaterally were analyzed carefully to detect the existence of retromolar foramens and morphology of the retromolar canals. The distance between the RMF and the CEJ of the second molar and the length of the RMC were measured. The prevalence of RMF in a sample of Egyptian population was (3.9%). All the foramina were detected unilaterally with no statistical significance between right and left sides. The curved course with horizontal branch was more common (Type VIII, B2). Although the prevalence of RMF and RMC in our population is low, however, their assessment is highly recommended to avoid surgical and anesthetic complications.