Impacted tooth associated with dentigerous cyst and compound odontoma – case report

Abstract

The dentigerous cyst is a benign cyst associated with the development of odontogenic epithelium that covers the crown of impacted teeth. These are prevalent in the first three decades of life, reaching more often Caucasian males. Odontomas are hamartomas affecting the dental tissues, which can be divided into compound and complex odontoma. Odontoma affects children and young adults of both sexes, with a predilection for jaw bone. Case report: A 12-year-old boy attended the Pediatric Dentistry Clinic of Positivo University, complaining of pain in right parasymphysis region. The panoramic radiograph showed an impacted tooth (#43) located in base of the jaw below the apex of the teeth #31 to #42, with increased follicle. A radiopaque mass with small fragments of approximately 1 cm, located at the apex of the teeth #83 and #84 was seen. The patient underwent surgery under general anesthesia to remove the impacted tooth and radiopaque injury. Histopathological analysis of the dental follicle was compatible with dentigerous cyst and dental fragments were diagnosed as compound odontoma. The postoperative was uneventful, four months after the surgery the patient began orthodontic treatment for traction of tooth #44. Conclusion: Both lesions, dentigerous cyst and compound odontoma have favorable prognosis and low recurrence rate, but must be removed to maintain the integrity of the stomatognathic system. In this case was important the inter-relationship between dental specialties for the treatment of the patient.