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Radiolucent Lesions, Chris Martin DEN 222 6/21/2020 All information…

- - - - etiology: cystic change in the dental follicle following crown formation
        method of transmission: n/a
        characteristics: only evident on radiographs; asymptomatic; well-circumscribed, unilocular, and sometimes multilocular
        dental implications: delayed tooth eruption
        tx/prognosis: removal of the cyst
    - - etiology: accumulation of fluid or blood between the crown of an erupting tooth and the reduced enamel organ; due to trauma
        method of transmission: n/a
        characteristics: darker appearance and appear elevated; smooth bluish swelling (dome-like) on the crest of the alveolar ridge
        dental implications: failure of the tooth to erupt
        tx/prognosis: no tx necessary
  - - - etiology: develops from the dental lamina or its remnants
        method of transmission: n/a
        characteristics: posterior mandibular region; radiographic appearance closely resembles that of an ameloblastoma; very aggressive features
        dental implications: prompt treatment is required
        tx/prognosis: removal of the entire cyst; capsule must be removed intact so that daughter cells do not remain
  - - - etiology: reduced enamel epithelium or odontogenic epithelium
        method of transmission: n/a
        characteristics: within the gingiva; resemble a gingival cyst or a peripheral giant cell granuloma; ghost cells
        dental implications: rule out more aggressive lesions
        tx/prognosis: excision; good prognosis
    - - etiology: epithelium trapped when globular portion of median nasal process fused with MX process
        method of transmission: n/a
        characteristics: inverted pear-shape; divergence of tooth roots; circumscribed; pulp vitality
        dental implications: evaluate teeth for vitality; endodontics if needed
        tx/prognosis: surgical removal; good prognosis
    - - etiology: locally aggressive odontogenic cyst
        method of transmission: n/a
        characteristics: swelling, expansion
        dental implications: follow-up and close monitoring
        tx/prognosis: enucleation, curettage, cystectomy, excision
    - - etiology: epithelial remnants of embryologic structure of nasopalatine ducts
        method of transmission: n/a
        characteristics: pain, tenderness, swelling, drainage in MX incisor region; foul, salty taste
        dental implications: not radiographically diagnostic; biopsy
        tx/prognosis: surgical removal; good prognosis
    - - Static Bone Cyst
        
        etiology: defect in mandible that surrounds salivary gland tissue; entrapment of salivary gland tissue and is not lined by epithelium
        method of transmission: n/a
        characteristics: discovered w/ panorex, posterior MD below MD canal; sharply circumscribed, oval
        dental implications: biopsy to rule out pathology
        tx/prognosis: observe and monitor