Under your nose: a rare finding during dissection provides insights into maxillary supernumerary teeth

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dc.contributor.authorRedwood, C.
dc.contributor.authorTownsend, G.
dc.contributor.authorGhabriel, M.
dc.contributor.authorBrook, A.
dc.date.issued2014
dc.description.abstractBACKGROUND: A supernumerary tooth was found during anatomical dissection. The position of this tooth, still impacted in the maxilla, and the associated pathology make this a rare case. METHODS: During dissection by dental students of the sagittally-sectioned head of a cadaver, a supernumerary tooth was identified in the mid-palatal area. Further dissection revealed a swelling with a thin bony covering related to the crown of the tooth. The maxilla was removed en bloc and radiographic examination, CT scanning, electron microscopy and histology were undertaken. RESULTS: The tooth had a crenulated occlusal surface and a single root. It was 25 mm posterior to the root apex of the permanent upper central incisor. The swelling, confirmed by radiographs and CT imaging to be associated with the crown, occupied approximately one-third of the maxillary sinus. The 3D shape of the cystic lesion was visualized by a composite digital movie. CONCLUSIONS: The crown form, position of the tooth and the associated dentigerous cyst suggested it was a palatally developing supernumerary premolar which had been displaced to the palatal midline by the expanding cyst. This rare case highlights the learning and teaching opportunities available during dissection, showing important variations in both development and clinical anatomy.
dc.description.statementofresponsibilityC Redwood, GC Townsend, M Ghabriel, AH Brook
dc.identifier.citationAustralian Dental Journal, 2014; 59(3):379-385
dc.identifier.doi10.1111/adj.12194
dc.identifier.issn1834-7819
dc.identifier.issn1834-7819
dc.identifier.orcidGhabriel, M. [0000-0002-9153-271X]
dc.identifier.orcidBrook, A. [0000-0002-3484-3888]
dc.identifier.urihttp://hdl.handle.net/2440/95411
dc.language.isoen
dc.publisherWiley
dc.rights© 2014 Australian Dental Association
dc.source.urihttps://doi.org/10.1111/adj.12194
dc.subjectAnatomical dissection; dental education; dentigerous cyst; odontogenesis; supernumerary tooth
dc.titleUnder your nose: a rare finding during dissection provides insights into maxillary supernumerary teeth
dc.typeJournal article
pubs.publication-statusPublished

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