Cysts are pathological cavities with liquid, semi-liquid, solid or gaseous content, lined with epithelium on the inside and by connective tissue on the outside. The peri-apical cyst is a common inflammatory lesion of the jaws, which upon reaching a significant size, retention or even the displacement of adjacent teeth, is derived from the remains of Malassez. A case was presented of a patient who came to the dental office, asymptomatic with the presence of leaking restorations. The clinical examination revealed soft palatal tissue without bone support at the level of pieces # 11 and # 12; radiographically, a hypodense, well-defined radiolucent image was evidenced, including vestibular and palatal tables, total palatal bone lysis and mucosal involvement. The lesion was surgically treated with apicoectomy, bone regeneration, and fibrin-rich plasma. In the postoperative control, an adequa...

  Mesiodens are a type of supernumerary tooth that appears more frequently in the definitive dentition, they are pieces generally located in the midline of the upper jaw, of unknown etiology, but the most accepted theory is due to a hyperactivity of the dental lamina during morphogenesis. The purpose of this work is to describe the case of a 14-year-old male patient with no relevant pathological history. The intraoral clinical analysis shows a dental organ in the midline of the upper jaw compatible with a mesiodens and another included located at the level of the nasal cavity. On tomographic analysis there is presence of a hyperdense area between upper incisors with a characteristic compatible with a mesiodens, in a sagittal section a hyperdense area is observed 7mm from the alveolar rim towards the floor of the nostrils, an inverted dental structure with a diameter of 8mm, ectopic loc...