Radiological diagnosis of the oral cavity is challenging because of the proximity of osseous structures with soft tissues. The assessment of intra-oral soft tissue during the examination of oral and maxillofacial radiographs is crucial for dental purposes, such as surgical correction after trauma or in the case of anatomical or developmental deformities, periodontal therapy, orthodontic treatment, restorative procedures, dental implant treatment. In addition, it is significant for the diagnosis of incidental finding of the soft tissue of the oral cavity as a metastatic oral soft tissue lesion