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Supernumerary teeth occur in a wide variety of sites. Those that have been reported include palate, mandibular condyle, co-site. Reported symptoms and signs associated with supernumerary teeth in the nasal cavity (nasal teeth) have included facial pain, external nasal deformities, foul smelling rhinorrhea, recurrent epistaxis and oronasal fistula. Very rarely, septal perfor-ation has been reported. We present one case in which eruption of toth into the nasal cavity was asociated with nasal septal perforation and removed by appropriate surgery. (Korean J Otolaryngol 2002;45:187-90)