Lateral periodontal cyst


  • It is a developmental odontogenic cyst. It arises from remnants of the dental lamina or from the reduced enamel epithelium.
  • Common site: Along the lateral surface of the root of vital tooth. Usually in mandibular premolar/canine region.
  • Usually asymptomatic.
  • Small size (less than 1 cm in diameter).
  • Unilocular, round or oval, well-defined, usually well corticated radiolucency.

Differential diagnosis


Lateral periodontal cyst case

Lateral periodontal cyst