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Pericoronal radiolucency associated with incomplete crown.

Kyung-Soo Nah¹

¹Department of Oral and Maxillofacial Radiology, School of Dentistry, Pusan National University, Yangsan, Korea.

Imaging Science in Dentistry

|January 1, 2014

Summary

This summary is machine-generated.

Dentigerous cysts can form around developing tooth crowns before the cemento-enamel junction is complete. This challenges previous understandings of odontogenic cyst development and presentation.

Keywords:

Dentigerous Cyst Odontogenic Cysts Tooth, Unerupted

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Area of Science:

Dentistry
Oral Pathology
Developmental Biology

Background:

Odontogenic cysts are developmental or inflammatory lesions of the jaws.
Dentigerous cysts typically arise from the eruption of a tooth, enclosing the crown.
Previous literature has not described odontogenic cysts associated with incompletely formed tooth crowns.

Observation:

The author observed 8 cases of pericoronal radiolucency with incomplete tooth crowns.
The developing crowns appeared underdeveloped, sometimes radiographically floating within the lesion.
Initial diagnosis suggested odontogenic keratocysts in all cases.

Findings:

Histopathological examination revealed that 50% of the lesions were dentigerous cysts.
This indicates dentigerous cysts can occur before the cemento-enamel junction is fully formed.
The findings present a novel presentation of dentigerous cyst development.

Implications:

This study expands the differential diagnosis for pericoronal radiolucencies.
It suggests that dentigerous cysts may have a broader developmental window than previously recognized.
Clinicians should consider dentigerous cysts in cases of radiolucencies with incompletely developed tooth crowns.