Eruption of a tooth into a nonoral environs is rare. Ectopic eruption of the tooth into the nasal cavity and chin has been reported before. This is a report of an ectopic third molar tooth in the roof of the maxillary sinus, which has not, to our knowledge, been reported before.
* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.