Since the initial report by Albinus in 1754, there are many reports on so-called reversed (displaced) teeth which grow in abnormal positions due to misdirection of teeth eruption.
The authors experienced 6 cases of displaced teeth, 2 in the maxillary sinus, 2 in the nasal cavity and the 2 others in the frontal process of the maxilla.
Most cases of displaced teeth in the nasal cavity seem to be found during infancy with various symptoms such as nasal obstruction, rhinorrhea and nasal bleeding. But the teeth displaced in the maxillary sinus or frontal process of the maxilla are mostly asymptomatic, accordingly, the displaced teeth are found very late incidentally by X-ray examination when the patient visits the hospital with nasal symptoms.
