Objectives: To measure the average bone width and bone height in the posterioredentulous spans in the mandible as well as to evaluate bone quality and anterior extensionof the Inferior alveolar nerve to assess possibility for dental implant placement. Study Design:Cross-sectional study. Setting: Armed Forces Institute of Dentistry, Rawalpindi – Pakistan.Period: July 2017 to Oct 2017. Method: Bone height, width and anterior extension of inferioralveolar nerve was assessed using CBCT images from the hospital database. Bone quality wascategorized as hard, moderately hard or soft based on clinician’s tactile sensations. Results:Average bone width of 6.12 ±1.51 mm and average bone height of 13.56 ± 2.43 mm wasfound among the study subjects. “Soft” bone quality was found most prevalent in the posteriormandible. Anterior extension of the Inferior alveolar nerve was visible in 14% of subjects only.Conclusion: Variations in the bone width, height and density endorse the importance of a sitespecificbone tissue evaluation prior to implant installation.