Common site

• Mandible: buccally/ distobuccally placed
• Rises along side of partially erupted 3rd molar + pericoronitis
• Teeth associated with these cysts show enamel spur extending from buccal cervical margin to root furcation

Pathogenesis

• Pericoronal inflammation
• Proliferation of REE covering unerupted/ partially erupted part of crown of tooth/ buccal spur
• Forms paradental cyst

Radiology

• Well defined radiolucency:
  • Neck of tooth
  • Coronal 3rd of root

Management

• Extraction

Picture