Introduction: To maintain the structural and functional integrity of bone, similar to the natural tooth, Dental implants are most widely used for treatment of edentulous areas in the mouth. Aim and Objectives: Aim of this study is to evaluate the depth of submandibular gland fossa and its relationship with the mandibular canal, based on gender and side of the mandible. Materials and Methods: CBCT scans of 100 patients of both males and females were studied. The deepest region of submandibular gland fossa and the superior, parallel, and the inferior relationship of the mandibular canal to submandibular gland fossae were obtained. Results: The mean ± SD of the depth of the submandibular gland fossa on the right side in males and females were 1.72 ± 0.431 mm and 1.68 ± 0.327mm, respectively, and those on the left were 1.75 ± 0.385 mm and 1.49± 0.295mm respectively. The deepest region in both the genders was above the infra-alveolar canal. Conclusion: Greater depths were seen in males in comparison to females, Greater depth was seen in the right side of the mandible as compared to the left side in both males and females. Hence, while placing implants, thickness of the alveolar bone should be evaluated cautiously in males.

Aim: 1) to assess the morphological variation of the nasopalatine canal (NPC) concerning age and gender. 2). to assess the correlation between the gender and morphology of the canal. 3). to assess the correlation between age and length of the canal. Materials and Methods: This is a retrospective, randomized observational study. The study comprised of 60 CBCT scans of maxilla showing NPC completely. The patients were in the age range of 15-75 years. Scan of 25 females and 35 males were included in the study. Patient below 15 years of age and NPC pathology or impacted teeth in same region were excluded in the study. The scans were obtained using ICAT17-19 machine and analyzed Vision software. Cone-Beam 3D Imaging Machine operating at 120 kvp, 37.07 mAs with 0.25 mm voxel size, and a field of view of 16 × 6 cm maxilla. Results: Nasopalatine canal has 4 different morphological shapes. The most common shape was the cylindrical shape amongst both males and females. The least common shape was found to be hourglass shape with increasing age the length of NPC was found to decrease. The length of the canal was found to be longer in males when compared to females Conclusion: This study highlights the importance of NPC morphology before or during surgical procedures involving the maxilla.