Ectopic eruption of maxillary molar tooth (wisdom tooth)

Case contributed by Dr Bruno Di Muzio


26 year old male with suffering recurrent headeache. CT scans for face sinus and brain was requested. Normal brain CT. CT images show the third molar (wisdom tooth) tooth projecting into the right maxillary sinus.

Patient Data

Age: 26
Gender: Male

Scout shows a well-defined opacity in the maxillary sinus projection.

Axial CT shows the third molar tooth in the projecting into the right maxillary sinus.

Case Discussion

Ectopic eruption of teeth into regions other than the oral cavity is rare although there have been reports of teeth in the nasal septum, mandibular condyle, coronoid process and the palate.

Occasionally, a tooth may erupt into the maxillary antrum and present
with local sinonasal symptoms attributed to recurrent or chronic sinusitis.

The diagnosis of this condition can easily be made radiologically with plain sinus X-rays.

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Case Information

rID: 12702
Case created: 1st Jan 2011
Last edited: 4th Sep 2015
System: Head & Neck
Inclusion in quiz mode: Included

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